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Finding the Fourth Proportional to 8,750,650.80, 13,129,912.80 and 3,074,948.40

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Solution

The fourth proportional to 8,750,650.80, 13,129,912.80 and 3,074,948.40 is: 4,613,805.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,750,650.80 : 13,129,912.80 = 3,074,948.40 : x
  2. Step 2: Convert to fraction form
    8,750,650.80/13,129,912.80 = 3,074,948.40/x
  3. Step 3: Cross multiply
    8,750,650.80x = 13,129,912.80 × 3,074,948.40
  4. Step 4: Simplify right side
    8,750,650.80x = 40,373,804,356,499.52
  5. Step 5: Solve for x
    x = 40,373,804,356,499.52/8,750,650.80
  6. Step 6: Final answer
    x = 4,613,805.91

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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.