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Finding the Fourth Proportional to 39,603.96, 59,404.80 and 13,310.16

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Solution

The fourth proportional to 39,603.96, 59,404.80 and 13,310.16 is: 19,964.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,603.96 : 59,404.80 = 13,310.16 : x
  2. Step 2: Convert to fraction form
    39,603.96/59,404.80 = 13,310.16/x
  3. Step 3: Cross multiply
    39,603.96x = 59,404.80 × 13,310.16
  4. Step 4: Simplify right side
    39,603.96x = 790,687,392.77
  5. Step 5: Solve for x
    x = 790,687,392.77/39,603.96
  6. Step 6: Final answer
    x = 19,964.86

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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.