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Finding the Fourth Proportional to 17,452,978.80, 26,179,468.20 and 5,485,714.80

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Solution

The fourth proportional to 17,452,978.80, 26,179,468.20 and 5,485,714.80 is: 8,228,572.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,452,978.80 : 26,179,468.20 = 5,485,714.80 : x
  2. Step 2: Convert to fraction form
    17,452,978.80/26,179,468.20 = 5,485,714.80/x
  3. Step 3: Cross multiply
    17,452,978.80x = 26,179,468.20 × 5,485,714.80
  4. Step 4: Simplify right side
    17,452,978.80x = 143,613,096,160,869.34
  5. Step 5: Solve for x
    x = 143,613,096,160,869.34/17,452,978.80
  6. Step 6: Final answer
    x = 8,228,572.20

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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.