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Finding the Fourth Proportional to 66,750.50, 92,115.36 and 36,123.57

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Solution

The fourth proportional to 66,750.50, 92,115.36 and 36,123.57 is: 49,850.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,750.50 : 92,115.36 = 36,123.57 : x
  2. Step 2: Convert to fraction form
    66,750.50/92,115.36 = 36,123.57/x
  3. Step 3: Cross multiply
    66,750.50x = 92,115.36 × 36,123.57
  4. Step 4: Simplify right side
    66,750.50x = 3,327,535,655.04
  5. Step 5: Solve for x
    x = 3,327,535,655.04/66,750.50
  6. Step 6: Final answer
    x = 49,850.35

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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.