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Finding the Fourth Proportional to 18,598,326.82, 27,896,974.53 and 4,951,590.28

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Solution

The fourth proportional to 18,598,326.82, 27,896,974.53 and 4,951,590.28 is: 7,427,248.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,598,326.82 : 27,896,974.53 = 4,951,590.28 : x
  2. Step 2: Convert to fraction form
    18,598,326.82/27,896,974.53 = 4,951,590.28/x
  3. Step 3: Cross multiply
    18,598,326.82x = 27,896,974.53 × 4,951,590.28
  4. Step 4: Simplify right side
    18,598,326.82x = 138,134,387,924,155.58
  5. Step 5: Solve for x
    x = 138,134,387,924,155.58/18,598,326.82
  6. Step 6: Final answer
    x = 7,427,248.12

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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.