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Finding the Fourth Proportional to 59,636.66, 89,318.90 and 28,493.78

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Solution

The fourth proportional to 59,636.66, 89,318.90 and 28,493.78 is: 42,675.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,636.66 : 89,318.90 = 28,493.78 : x
  2. Step 2: Convert to fraction form
    59,636.66/89,318.90 = 28,493.78/x
  3. Step 3: Cross multiply
    59,636.66x = 89,318.90 × 28,493.78
  4. Step 4: Simplify right side
    59,636.66x = 2,545,032,711.08
  5. Step 5: Solve for x
    x = 2,545,032,711.08/59,636.66
  6. Step 6: Final answer
    x = 42,675.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.