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Finding the Fourth Proportional to 8,982.64, 13,473.90 and 7,440.40

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Solution

The fourth proportional to 8,982.64, 13,473.90 and 7,440.40 is: 11,160.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,982.64 : 13,473.90 = 7,440.40 : x
  2. Step 2: Convert to fraction form
    8,982.64/13,473.90 = 7,440.40/x
  3. Step 3: Cross multiply
    8,982.64x = 13,473.90 × 7,440.40
  4. Step 4: Simplify right side
    8,982.64x = 100,251,205.56
  5. Step 5: Solve for x
    x = 100,251,205.56/8,982.64
  6. Step 6: Final answer
    x = 11,160.55

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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.