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Finding the Fourth Proportional to 8,865,778.60, 13,304,572.80 and 4,070,999.80

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Solution

The fourth proportional to 8,865,778.60, 13,304,572.80 and 4,070,999.80 is: 6,109,211.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,865,778.60 : 13,304,572.80 = 4,070,999.80 : x
  2. Step 2: Convert to fraction form
    8,865,778.60/13,304,572.80 = 4,070,999.80/x
  3. Step 3: Cross multiply
    8,865,778.60x = 13,304,572.80 × 4,070,999.80
  4. Step 4: Simplify right side
    8,865,778.60x = 54,162,913,207,885.44
  5. Step 5: Solve for x
    x = 54,162,913,207,885.44/8,865,778.60
  6. Step 6: Final answer
    x = 6,109,211.12

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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.