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Finding the Fourth Proportional to 6,654,649.60, 9,981,580.72 and 1,862,232.72

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Solution

The fourth proportional to 6,654,649.60, 9,981,580.72 and 1,862,232.72 is: 2,793,238.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,654,649.60 : 9,981,580.72 = 1,862,232.72 : x
  2. Step 2: Convert to fraction form
    6,654,649.60/9,981,580.72 = 1,862,232.72/x
  3. Step 3: Cross multiply
    6,654,649.60x = 9,981,580.72 × 1,862,232.72
  4. Step 4: Simplify right side
    6,654,649.60x = 18,588,026,214,105.16
  5. Step 5: Solve for x
    x = 18,588,026,214,105.16/6,654,649.60
  6. Step 6: Final answer
    x = 2,793,238.91

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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.