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Finding the Fourth Proportional to 66,988.46, 92,443.70 and 36,774.30

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Solution

The fourth proportional to 66,988.46, 92,443.70 and 36,774.30 is: 50,748.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,988.46 : 92,443.70 = 36,774.30 : x
  2. Step 2: Convert to fraction form
    66,988.46/92,443.70 = 36,774.30/x
  3. Step 3: Cross multiply
    66,988.46x = 92,443.70 × 36,774.30
  4. Step 4: Simplify right side
    66,988.46x = 3,399,552,356.91
  5. Step 5: Solve for x
    x = 3,399,552,356.91/66,988.46
  6. Step 6: Final answer
    x = 50,748.33

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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.