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Finding the Fourth Proportional to 66,347.92, 91,568.51 and 38,053

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Solution

The fourth proportional to 66,347.92, 91,568.51 and 38,053 is: 52,517.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,347.92 : 91,568.51 = 38,053 : x
  2. Step 2: Convert to fraction form
    66,347.92/91,568.51 = 38,053/x
  3. Step 3: Cross multiply
    66,347.92x = 91,568.51 × 38,053
  4. Step 4: Simplify right side
    66,347.92x = 3,484,456,511.03
  5. Step 5: Solve for x
    x = 3,484,456,511.03/66,347.92
  6. Step 6: Final answer
    x = 52,517.95

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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.