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Finding the Fourth Proportional to 63,359.59, 87,472.62 and 47,315.36

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Solution

The fourth proportional to 63,359.59, 87,472.62 and 47,315.36 is: 65,322.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,359.59 : 87,472.62 = 47,315.36 : x
  2. Step 2: Convert to fraction form
    63,359.59/87,472.62 = 47,315.36/x
  3. Step 3: Cross multiply
    63,359.59x = 87,472.62 × 47,315.36
  4. Step 4: Simplify right side
    63,359.59x = 4,138,798,724.12
  5. Step 5: Solve for x
    x = 4,138,798,724.12/63,359.59
  6. Step 6: Final answer
    x = 65,322.37

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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.