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Finding the Fourth Proportional to 8,959,404.60, 13,439,106.90 and 8,810,105.40

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Solution

The fourth proportional to 8,959,404.60, 13,439,106.90 and 8,810,105.40 is: 13,215,158.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,959,404.60 : 13,439,106.90 = 8,810,105.40 : x
  2. Step 2: Convert to fraction form
    8,959,404.60/13,439,106.90 = 8,810,105.40/x
  3. Step 3: Cross multiply
    8,959,404.60x = 13,439,106.90 × 8,810,105.40
  4. Step 4: Simplify right side
    8,959,404.60x = 118,399,948,270,867.27
  5. Step 5: Solve for x
    x = 118,399,948,270,867.27/8,959,404.60
  6. Step 6: Final answer
    x = 13,215,158.10

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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.