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Finding the Fourth Proportional to 14,815,663.20, 22,223,494.80 and 13,209,530.40

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Solution

The fourth proportional to 14,815,663.20, 22,223,494.80 and 13,209,530.40 is: 19,814,295.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,815,663.20 : 22,223,494.80 = 13,209,530.40 : x
  2. Step 2: Convert to fraction form
    14,815,663.20/22,223,494.80 = 13,209,530.40/x
  3. Step 3: Cross multiply
    14,815,663.20x = 22,223,494.80 × 13,209,530.40
  4. Step 4: Simplify right side
    14,815,663.20x = 293,561,930,154,841.94
  5. Step 5: Solve for x
    x = 293,561,930,154,841.94/14,815,663.20
  6. Step 6: Final answer
    x = 19,814,295.60

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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.