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Finding the Fourth Proportional to 38,585.52, 57,787.56 and 18,802.08

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Solution

The fourth proportional to 38,585.52, 57,787.56 and 18,802.08 is: 28,158.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,585.52 : 57,787.56 = 18,802.08 : x
  2. Step 2: Convert to fraction form
    38,585.52/57,787.56 = 18,802.08/x
  3. Step 3: Cross multiply
    38,585.52x = 57,787.56 × 18,802.08
  4. Step 4: Simplify right side
    38,585.52x = 1,086,526,326.12
  5. Step 5: Solve for x
    x = 1,086,526,326.12/38,585.52
  6. Step 6: Final answer
    x = 28,158.91

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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.