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Finding the Fourth Proportional to 63,688.88, 87,931.50 and 41,036.96

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Solution

The fourth proportional to 63,688.88, 87,931.50 and 41,036.96 is: 56,657.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,688.88 : 87,931.50 = 41,036.96 : x
  2. Step 2: Convert to fraction form
    63,688.88/87,931.50 = 41,036.96/x
  3. Step 3: Cross multiply
    63,688.88x = 87,931.50 × 41,036.96
  4. Step 4: Simplify right side
    63,688.88x = 3,608,441,448.24
  5. Step 5: Solve for x
    x = 3,608,441,448.24/63,688.88
  6. Step 6: Final answer
    x = 56,657.32

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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.