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Finding the Fourth Proportional to 66,940.56, 92,367.40 and 38,641.04

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Solution

The fourth proportional to 66,940.56, 92,367.40 and 38,641.04 is: 53,318.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,940.56 : 92,367.40 = 38,641.04 : x
  2. Step 2: Convert to fraction form
    66,940.56/92,367.40 = 38,641.04/x
  3. Step 3: Cross multiply
    66,940.56x = 92,367.40 × 38,641.04
  4. Step 4: Simplify right side
    66,940.56x = 3,569,172,398.10
  5. Step 5: Solve for x
    x = 3,569,172,398.10/66,940.56
  6. Step 6: Final answer
    x = 53,318.53

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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.