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Finding the Fourth Proportional to 39,068.80, 58,597.20 and 12,773.68

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Solution

The fourth proportional to 39,068.80, 58,597.20 and 12,773.68 is: 19,158.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,068.80 : 58,597.20 = 12,773.68 : x
  2. Step 2: Convert to fraction form
    39,068.80/58,597.20 = 12,773.68/x
  3. Step 3: Cross multiply
    39,068.80x = 58,597.20 × 12,773.68
  4. Step 4: Simplify right side
    39,068.80x = 748,501,881.70
  5. Step 5: Solve for x
    x = 748,501,881.70/39,068.80
  6. Step 6: Final answer
    x = 19,158.56

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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.