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Finding the Fourth Proportional to 67,376.25, 92,983.47 and 38,704.88

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Solution

The fourth proportional to 67,376.25, 92,983.47 and 38,704.88 is: 53,415.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,376.25 : 92,983.47 = 38,704.88 : x
  2. Step 2: Convert to fraction form
    67,376.25/92,983.47 = 38,704.88/x
  3. Step 3: Cross multiply
    67,376.25x = 92,983.47 × 38,704.88
  4. Step 4: Simplify right side
    67,376.25x = 3,598,914,048.33
  5. Step 5: Solve for x
    x = 3,598,914,048.33/67,376.25
  6. Step 6: Final answer
    x = 53,415.17

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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.