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Finding the Fourth Proportional to 68,251.90, 94,186.20 and 38,037.10

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Solution

The fourth proportional to 68,251.90, 94,186.20 and 38,037.10 is: 52,490.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,251.90 : 94,186.20 = 38,037.10 : x
  2. Step 2: Convert to fraction form
    68,251.90/94,186.20 = 38,037.10/x
  3. Step 3: Cross multiply
    68,251.90x = 94,186.20 × 38,037.10
  4. Step 4: Simplify right side
    68,251.90x = 3,582,569,908.02
  5. Step 5: Solve for x
    x = 3,582,569,908.02/68,251.90
  6. Step 6: Final answer
    x = 52,490.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.