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Finding the Fourth Proportional to 59,566.78, 89,214.09 and 28,423.90

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Solution

The fourth proportional to 59,566.78, 89,214.09 and 28,423.90 is: 42,570.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,566.78 : 89,214.09 = 28,423.90 : x
  2. Step 2: Convert to fraction form
    59,566.78/89,214.09 = 28,423.90/x
  3. Step 3: Cross multiply
    59,566.78x = 89,214.09 × 28,423.90
  4. Step 4: Simplify right side
    59,566.78x = 2,535,812,372.75
  5. Step 5: Solve for x
    x = 2,535,812,372.75/59,566.78
  6. Step 6: Final answer
    x = 42,570.92

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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.