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Finding the Fourth Proportional to 66,445.59, 91,702.69 and 37,769.56

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Solution

The fourth proportional to 66,445.59, 91,702.69 and 37,769.56 is: 52,126.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,445.59 : 91,702.69 = 37,769.56 : x
  2. Step 2: Convert to fraction form
    66,445.59/91,702.69 = 37,769.56/x
  3. Step 3: Cross multiply
    66,445.59x = 91,702.69 × 37,769.56
  4. Step 4: Simplify right side
    66,445.59x = 3,463,570,252.12
  5. Step 5: Solve for x
    x = 3,463,570,252.12/66,445.59
  6. Step 6: Final answer
    x = 52,126.41

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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.