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Finding the Fourth Proportional to 5,987.76, 8,981.65 and 2,092.16

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Solution

The fourth proportional to 5,987.76, 8,981.65 and 2,092.16 is: 3,138.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,987.76 : 8,981.65 = 2,092.16 : x
  2. Step 2: Convert to fraction form
    5,987.76/8,981.65 = 2,092.16/x
  3. Step 3: Cross multiply
    5,987.76x = 8,981.65 × 2,092.16
  4. Step 4: Simplify right side
    5,987.76x = 18,791,073.93
  5. Step 5: Solve for x
    x = 18,791,073.93/5,987.76
  6. Step 6: Final answer
    x = 3,138.25

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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.