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Finding the Fourth Proportional to 8,717.55, 13,076.33 and 7,335.15

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Solution

The fourth proportional to 8,717.55, 13,076.33 and 7,335.15 is: 11,002.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,717.55 : 13,076.33 = 7,335.15 : x
  2. Step 2: Convert to fraction form
    8,717.55/13,076.33 = 7,335.15/x
  3. Step 3: Cross multiply
    8,717.55x = 13,076.33 × 7,335.15
  4. Step 4: Simplify right side
    8,717.55x = 95,916,805.32
  5. Step 5: Solve for x
    x = 95,916,805.32/8,717.55
  6. Step 6: Final answer
    x = 11,002.73

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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.