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Finding the Fourth Proportional to 31,892.66, 48,138.55 and 31,892.66

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Solution

The fourth proportional to 31,892.66, 48,138.55 and 31,892.66 is: 48,138.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,892.66 : 48,138.55 = 31,892.66 : x
  2. Step 2: Convert to fraction form
    31,892.66/48,138.55 = 31,892.66/x
  3. Step 3: Cross multiply
    31,892.66x = 48,138.55 × 31,892.66
  4. Step 4: Simplify right side
    31,892.66x = 1,535,266,248.58
  5. Step 5: Solve for x
    x = 1,535,266,248.58/31,892.66
  6. Step 6: Final answer
    x = 48,138.55

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.