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Finding the Fourth Proportional to 8,061.84, 12,092.76 and 5,287.88

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Solution

The fourth proportional to 8,061.84, 12,092.76 and 5,287.88 is: 7,931.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,061.84 : 12,092.76 = 5,287.88 : x
  2. Step 2: Convert to fraction form
    8,061.84/12,092.76 = 5,287.88/x
  3. Step 3: Cross multiply
    8,061.84x = 12,092.76 × 5,287.88
  4. Step 4: Simplify right side
    8,061.84x = 63,945,023.11
  5. Step 5: Solve for x
    x = 63,945,023.11/8,061.84
  6. Step 6: Final answer
    x = 7,931.81

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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.