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Finding the Fourth Proportional to 66,827.85, 92,199.72 and 38,126.89

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Solution

The fourth proportional to 66,827.85, 92,199.72 and 38,126.89 is: 52,602.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,827.85 : 92,199.72 = 38,126.89 : x
  2. Step 2: Convert to fraction form
    66,827.85/92,199.72 = 38,126.89/x
  3. Step 3: Cross multiply
    66,827.85x = 92,199.72 × 38,126.89
  4. Step 4: Simplify right side
    66,827.85x = 3,515,288,737.85
  5. Step 5: Solve for x
    x = 3,515,288,737.85/66,827.85
  6. Step 6: Final answer
    x = 52,602.15

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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.