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Finding the Fourth Proportional to 45,614, 68,785.76 and 44,990.24

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Solution

The fourth proportional to 45,614, 68,785.76 and 44,990.24 is: 67,845.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,614 : 68,785.76 = 44,990.24 : x
  2. Step 2: Convert to fraction form
    45,614/68,785.76 = 44,990.24/x
  3. Step 3: Cross multiply
    45,614x = 68,785.76 × 44,990.24
  4. Step 4: Simplify right side
    45,614x = 3,094,687,850.98
  5. Step 5: Solve for x
    x = 3,094,687,850.98/45,614
  6. Step 6: Final answer
    x = 67,845.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.