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Finding the Fourth Proportional to 18,643,630.40, 27,918,206.40 and 14,864,494.40

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Solution

The fourth proportional to 18,643,630.40, 27,918,206.40 and 14,864,494.40 is: 22,259,077.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,643,630.40 : 27,918,206.40 = 14,864,494.40 : x
  2. Step 2: Convert to fraction form
    18,643,630.40/27,918,206.40 = 14,864,494.40/x
  3. Step 3: Cross multiply
    18,643,630.40x = 27,918,206.40 × 14,864,494.40
  4. Step 4: Simplify right side
    18,643,630.40x = 414,990,022,690,844.12
  5. Step 5: Solve for x
    x = 414,990,022,690,844.12/18,643,630.40
  6. Step 6: Final answer
    x = 22,259,077.97

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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.