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Finding the Fourth Proportional to 8,869,408.80, 13,304,113.20 and 8,019,103.20

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Solution

The fourth proportional to 8,869,408.80, 13,304,113.20 and 8,019,103.20 is: 12,028,654.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,869,408.80 : 13,304,113.20 = 8,019,103.20 : x
  2. Step 2: Convert to fraction form
    8,869,408.80/13,304,113.20 = 8,019,103.20/x
  3. Step 3: Cross multiply
    8,869,408.80x = 13,304,113.20 × 8,019,103.20
  4. Step 4: Simplify right side
    8,869,408.80x = 106,687,056,735,282.23
  5. Step 5: Solve for x
    x = 106,687,056,735,282.23/8,869,408.80
  6. Step 6: Final answer
    x = 12,028,654.80

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Double scale
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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.