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Finding the Fourth Proportional to 66,712.61, 92,063.05 and 36,497.39

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Solution

The fourth proportional to 66,712.61, 92,063.05 and 36,497.39 is: 50,366.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,712.61 : 92,063.05 = 36,497.39 : x
  2. Step 2: Convert to fraction form
    66,712.61/92,063.05 = 36,497.39/x
  3. Step 3: Cross multiply
    66,712.61x = 92,063.05 × 36,497.39
  4. Step 4: Simplify right side
    66,712.61x = 3,360,060,488.88
  5. Step 5: Solve for x
    x = 3,360,060,488.88/66,712.61
  6. Step 6: Final answer
    x = 50,366.20

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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.