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Finding the Fourth Proportional to 10,354,760.80, 15,536,806.80 and 4,961,327.20

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Solution

The fourth proportional to 10,354,760.80, 15,536,806.80 and 4,961,327.20 is: 7,444,226.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,354,760.80 : 15,536,806.80 = 4,961,327.20 : x
  2. Step 2: Convert to fraction form
    10,354,760.80/15,536,806.80 = 4,961,327.20/x
  3. Step 3: Cross multiply
    10,354,760.80x = 15,536,806.80 × 4,961,327.20
  4. Step 4: Simplify right side
    10,354,760.80x = 77,083,182,177,984.97
  5. Step 5: Solve for x
    x = 77,083,182,177,984.97/10,354,760.80
  6. Step 6: Final answer
    x = 7,444,226.25

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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.