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Finding the Fourth Proportional to 66,862.95, 92,270.32 and 36,648.20

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Solution

The fourth proportional to 66,862.95, 92,270.32 and 36,648.20 is: 50,574.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,862.95 : 92,270.32 = 36,648.20 : x
  2. Step 2: Convert to fraction form
    66,862.95/92,270.32 = 36,648.20/x
  3. Step 3: Cross multiply
    66,862.95x = 92,270.32 × 36,648.20
  4. Step 4: Simplify right side
    66,862.95x = 3,381,541,141.42
  5. Step 5: Solve for x
    x = 3,381,541,141.42/66,862.95
  6. Step 6: Final answer
    x = 50,574.21

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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.