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Finding the Fourth Proportional to 63,089.61, 87,065.60 and 36,237.50

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Solution

The fourth proportional to 63,089.61, 87,065.60 and 36,237.50 is: 50,008.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,089.61 : 87,065.60 = 36,237.50 : x
  2. Step 2: Convert to fraction form
    63,089.61/87,065.60 = 36,237.50/x
  3. Step 3: Cross multiply
    63,089.61x = 87,065.60 × 36,237.50
  4. Step 4: Simplify right side
    63,089.61x = 3,155,039,680
  5. Step 5: Solve for x
    x = 3,155,039,680/63,089.61
  6. Step 6: Final answer
    x = 50,008.86

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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.