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Finding the Fourth Proportional to 39,644.61, 59,469.65 and 11,564.22

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Solution

The fourth proportional to 39,644.61, 59,469.65 and 11,564.22 is: 17,347.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,644.61 : 59,469.65 = 11,564.22 : x
  2. Step 2: Convert to fraction form
    39,644.61/59,469.65 = 11,564.22/x
  3. Step 3: Cross multiply
    39,644.61x = 59,469.65 × 11,564.22
  4. Step 4: Simplify right side
    39,644.61x = 687,720,115.92
  5. Step 5: Solve for x
    x = 687,720,115.92/39,644.61
  6. Step 6: Final answer
    x = 17,347.13

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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.