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Finding the Fourth Proportional to 8,986,872.10, 13,480,308.15 and 6,100,420.90

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Solution

The fourth proportional to 8,986,872.10, 13,480,308.15 and 6,100,420.90 is: 9,150,631.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,986,872.10 : 13,480,308.15 = 6,100,420.90 : x
  2. Step 2: Convert to fraction form
    8,986,872.10/13,480,308.15 = 6,100,420.90/x
  3. Step 3: Cross multiply
    8,986,872.10x = 13,480,308.15 × 6,100,420.90
  4. Step 4: Simplify right side
    8,986,872.10x = 82,235,553,576,700.34
  5. Step 5: Solve for x
    x = 82,235,553,576,700.34/8,986,872.10
  6. Step 6: Final answer
    x = 9,150,631.35

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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.