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Finding the Fourth Proportional to 7,641,009.90, 11,461,514.85 and 7,641,009.90

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Solution

The fourth proportional to 7,641,009.90, 11,461,514.85 and 7,641,009.90 is: 11,461,514.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,641,009.90 : 11,461,514.85 = 7,641,009.90 : x
  2. Step 2: Convert to fraction form
    7,641,009.90/11,461,514.85 = 7,641,009.90/x
  3. Step 3: Cross multiply
    7,641,009.90x = 11,461,514.85 × 7,641,009.90
  4. Step 4: Simplify right side
    7,641,009.90x = 87,577,548,437,847.02
  5. Step 5: Solve for x
    x = 87,577,548,437,847.02/7,641,009.90
  6. Step 6: Final answer
    x = 11,461,514.85

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.