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Finding the Fourth Proportional to 8,986,805.80, 13,480,208.70 and 6,861,041.80

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Solution

The fourth proportional to 8,986,805.80, 13,480,208.70 and 6,861,041.80 is: 10,291,562.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,986,805.80 : 13,480,208.70 = 6,861,041.80 : x
  2. Step 2: Convert to fraction form
    8,986,805.80/13,480,208.70 = 6,861,041.80/x
  3. Step 3: Cross multiply
    8,986,805.80x = 13,480,208.70 × 6,861,041.80
  4. Step 4: Simplify right side
    8,986,805.80x = 92,488,275,363,423.66
  5. Step 5: Solve for x
    x = 92,488,275,363,423.66/8,986,805.80
  6. Step 6: Final answer
    x = 10,291,562.70

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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.