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Finding the Fourth Proportional to 63,496.13, 87,604.73 and 39,636.64

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Solution

The fourth proportional to 63,496.13, 87,604.73 and 39,636.64 is: 54,686.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,496.13 : 87,604.73 = 39,636.64 : x
  2. Step 2: Convert to fraction form
    63,496.13/87,604.73 = 39,636.64/x
  3. Step 3: Cross multiply
    63,496.13x = 87,604.73 × 39,636.64
  4. Step 4: Simplify right side
    63,496.13x = 3,472,357,149.53
  5. Step 5: Solve for x
    x = 3,472,357,149.53/63,496.13
  6. Step 6: Final answer
    x = 54,686.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.