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Finding the Fourth Proportional to 39,794.60, 59,711.10 and 28,082.60

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Solution

The fourth proportional to 39,794.60, 59,711.10 and 28,082.60 is: 42,137.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,794.60 : 59,711.10 = 28,082.60 : x
  2. Step 2: Convert to fraction form
    39,794.60/59,711.10 = 28,082.60/x
  3. Step 3: Cross multiply
    39,794.60x = 59,711.10 × 28,082.60
  4. Step 4: Simplify right side
    39,794.60x = 1,676,842,936.86
  5. Step 5: Solve for x
    x = 1,676,842,936.86/39,794.60
  6. Step 6: Final answer
    x = 42,137.45

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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.