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Finding the Fourth Proportional to 7,461,200.70, 11,191,801.05 and 5,193,719.10

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Solution

The fourth proportional to 7,461,200.70, 11,191,801.05 and 5,193,719.10 is: 7,790,578.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,461,200.70 : 11,191,801.05 = 5,193,719.10 : x
  2. Step 2: Convert to fraction form
    7,461,200.70/11,191,801.05 = 5,193,719.10/x
  3. Step 3: Cross multiply
    7,461,200.70x = 11,191,801.05 × 5,193,719.10
  4. Step 4: Simplify right side
    7,461,200.70x = 58,127,070,876,785.05
  5. Step 5: Solve for x
    x = 58,127,070,876,785.05/7,461,200.70
  6. Step 6: Final answer
    x = 7,790,578.65

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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.