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Finding the Fourth Proportional to 66,752.64, 92,141.64 and 38,469.60

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Solution

The fourth proportional to 66,752.64, 92,141.64 and 38,469.60 is: 53,101.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,752.64 : 92,141.64 = 38,469.60 : x
  2. Step 2: Convert to fraction form
    66,752.64/92,141.64 = 38,469.60/x
  3. Step 3: Cross multiply
    66,752.64x = 92,141.64 × 38,469.60
  4. Step 4: Simplify right side
    66,752.64x = 3,544,652,034.14
  5. Step 5: Solve for x
    x = 3,544,652,034.14/66,752.64
  6. Step 6: Final answer
    x = 53,101.30

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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.