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Finding the Fourth Proportional to 59,892.60, 89,763.30 and 30,318.60

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Solution

The fourth proportional to 59,892.60, 89,763.30 and 30,318.60 is: 45,439.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,892.60 : 89,763.30 = 30,318.60 : x
  2. Step 2: Convert to fraction form
    59,892.60/89,763.30 = 30,318.60/x
  3. Step 3: Cross multiply
    59,892.60x = 89,763.30 × 30,318.60
  4. Step 4: Simplify right side
    59,892.60x = 2,721,497,587.38
  5. Step 5: Solve for x
    x = 2,721,497,587.38/59,892.60
  6. Step 6: Final answer
    x = 45,439.63

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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.