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Finding the Fourth Proportional to 64,866.96, 89,505.72 and 36,572.04

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Solution

The fourth proportional to 64,866.96, 89,505.72 and 36,572.04 is: 50,463.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,866.96 : 89,505.72 = 36,572.04 : x
  2. Step 2: Convert to fraction form
    64,866.96/89,505.72 = 36,572.04/x
  3. Step 3: Cross multiply
    64,866.96x = 89,505.72 × 36,572.04
  4. Step 4: Simplify right side
    64,866.96x = 3,273,406,772.07
  5. Step 5: Solve for x
    x = 3,273,406,772.07/64,866.96
  6. Step 6: Final answer
    x = 50,463.39

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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.