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Finding the Fourth Proportional to 66,671.52, 92,006.76 and 38,377.23

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Solution

The fourth proportional to 66,671.52, 92,006.76 and 38,377.23 is: 52,960.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,671.52 : 92,006.76 = 38,377.23 : x
  2. Step 2: Convert to fraction form
    66,671.52/92,006.76 = 38,377.23/x
  3. Step 3: Cross multiply
    66,671.52x = 92,006.76 × 38,377.23
  4. Step 4: Simplify right side
    66,671.52x = 3,530,964,590.07
  5. Step 5: Solve for x
    x = 3,530,964,590.07/66,671.52
  6. Step 6: Final answer
    x = 52,960.61

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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.