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Finding the Fourth Proportional to 66,702.87, 92,050.70 and 36,487.53

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Solution

The fourth proportional to 66,702.87, 92,050.70 and 36,487.53 is: 50,353.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,702.87 : 92,050.70 = 36,487.53 : x
  2. Step 2: Convert to fraction form
    66,702.87/92,050.70 = 36,487.53/x
  3. Step 3: Cross multiply
    66,702.87x = 92,050.70 × 36,487.53
  4. Step 4: Simplify right side
    66,702.87x = 3,358,702,495.33
  5. Step 5: Solve for x
    x = 3,358,702,495.33/66,702.87
  6. Step 6: Final answer
    x = 50,353.19

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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.