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Finding the Fourth Proportional to 18,435,649.30, 27,653,473.95 and 8,869,711.30

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Solution

The fourth proportional to 18,435,649.30, 27,653,473.95 and 8,869,711.30 is: 13,304,566.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,435,649.30 : 27,653,473.95 = 8,869,711.30 : x
  2. Step 2: Convert to fraction form
    18,435,649.30/27,653,473.95 = 8,869,711.30/x
  3. Step 3: Cross multiply
    18,435,649.30x = 27,653,473.95 × 8,869,711.30
  4. Step 4: Simplify right side
    18,435,649.30x = 245,278,330,378,570.66
  5. Step 5: Solve for x
    x = 245,278,330,378,570.66/18,435,649.30
  6. Step 6: Final answer
    x = 13,304,566.95

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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.