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Finding the Fourth Proportional to 8,238,918.65, 12,334,134.67 and 5,499,671.71

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Solution

The fourth proportional to 8,238,918.65, 12,334,134.67 and 5,499,671.71 is: 8,233,324.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,238,918.65 : 12,334,134.67 = 5,499,671.71 : x
  2. Step 2: Convert to fraction form
    8,238,918.65/12,334,134.67 = 5,499,671.71/x
  3. Step 3: Cross multiply
    8,238,918.65x = 12,334,134.67 × 5,499,671.71
  4. Step 4: Simplify right side
    8,238,918.65x = 67,833,691,455,781.43
  5. Step 5: Solve for x
    x = 67,833,691,455,781.43/8,238,918.65
  6. Step 6: Final answer
    x = 8,233,324.59

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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.