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Finding the Fourth Proportional to 83,079.84, 124,612.74 and 26,918.76

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Solution

The fourth proportional to 83,079.84, 124,612.74 and 26,918.76 is: 40,375.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,079.84 : 124,612.74 = 26,918.76 : x
  2. Step 2: Convert to fraction form
    83,079.84/124,612.74 = 26,918.76/x
  3. Step 3: Cross multiply
    83,079.84x = 124,612.74 × 26,918.76
  4. Step 4: Simplify right side
    83,079.84x = 3,354,420,441.00
  5. Step 5: Solve for x
    x = 3,354,420,441.00/83,079.84
  6. Step 6: Final answer
    x = 40,375.87

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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.