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Finding the Fourth Proportional to 8,654,297.79, 12,982,129.56 and 2,897,065.65

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Solution

The fourth proportional to 8,654,297.79, 12,982,129.56 and 2,897,065.65 is: 4,345,827.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,654,297.79 : 12,982,129.56 = 2,897,065.65 : x
  2. Step 2: Convert to fraction form
    8,654,297.79/12,982,129.56 = 2,897,065.65/x
  3. Step 3: Cross multiply
    8,654,297.79x = 12,982,129.56 × 2,897,065.65
  4. Step 4: Simplify right side
    8,654,297.79x = 37,610,081,612,125.62
  5. Step 5: Solve for x
    x = 37,610,081,612,125.62/8,654,297.79
  6. Step 6: Final answer
    x = 4,345,827.07

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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.