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Finding the Fourth Proportional to 8,384,387.60, 12,576,581.40 and 8,384,387.60

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Solution

The fourth proportional to 8,384,387.60, 12,576,581.40 and 8,384,387.60 is: 12,576,581.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,384,387.60 : 12,576,581.40 = 8,384,387.60 : x
  2. Step 2: Convert to fraction form
    8,384,387.60/12,576,581.40 = 8,384,387.60/x
  3. Step 3: Cross multiply
    8,384,387.60x = 12,576,581.40 × 8,384,387.60
  4. Step 4: Simplify right side
    8,384,387.60x = 105,446,933,140,550.64
  5. Step 5: Solve for x
    x = 105,446,933,140,550.64/8,384,387.60
  6. Step 6: Final answer
    x = 12,576,581.40

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Similar ratio
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1.5x scale

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.