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Finding the Fourth Proportional to 8,869.20, 12,241.20 and 5,333.04

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Solution

The fourth proportional to 8,869.20, 12,241.20 and 5,333.04 is: 7,360.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,869.20 : 12,241.20 = 5,333.04 : x
  2. Step 2: Convert to fraction form
    8,869.20/12,241.20 = 5,333.04/x
  3. Step 3: Cross multiply
    8,869.20x = 12,241.20 × 5,333.04
  4. Step 4: Simplify right side
    8,869.20x = 65,282,809.25
  5. Step 5: Solve for x
    x = 65,282,809.25/8,869.20
  6. Step 6: Final answer
    x = 7,360.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.