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Finding the Fourth Proportional to 8,902,813.70, 13,354,220.55 and 8,371,372.70

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Solution

The fourth proportional to 8,902,813.70, 13,354,220.55 and 8,371,372.70 is: 12,557,059.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,902,813.70 : 13,354,220.55 = 8,371,372.70 : x
  2. Step 2: Convert to fraction form
    8,902,813.70/13,354,220.55 = 8,371,372.70/x
  3. Step 3: Cross multiply
    8,902,813.70x = 13,354,220.55 × 8,371,372.70
  4. Step 4: Simplify right side
    8,902,813.70x = 111,793,157,342,049
  5. Step 5: Solve for x
    x = 111,793,157,342,049/8,902,813.70
  6. Step 6: Final answer
    x = 12,557,059.05

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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.