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Finding the Fourth Proportional to 7,817.58, 11,726.10 and 3,009.69

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Solution

The fourth proportional to 7,817.58, 11,726.10 and 3,009.69 is: 4,514.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,817.58 : 11,726.10 = 3,009.69 : x
  2. Step 2: Convert to fraction form
    7,817.58/11,726.10 = 3,009.69/x
  3. Step 3: Cross multiply
    7,817.58x = 11,726.10 × 3,009.69
  4. Step 4: Simplify right side
    7,817.58x = 35,291,925.91
  5. Step 5: Solve for x
    x = 35,291,925.91/7,817.58
  6. Step 6: Final answer
    x = 4,514.43

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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.