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Finding the Fourth Proportional to 69,689.64, 96,171.17 and 37,858.76

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Solution

The fourth proportional to 69,689.64, 96,171.17 and 37,858.76 is: 52,244.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,689.64 : 96,171.17 = 37,858.76 : x
  2. Step 2: Convert to fraction form
    69,689.64/96,171.17 = 37,858.76/x
  3. Step 3: Cross multiply
    69,689.64x = 96,171.17 × 37,858.76
  4. Step 4: Simplify right side
    69,689.64x = 3,640,921,054.66
  5. Step 5: Solve for x
    x = 3,640,921,054.66/69,689.64
  6. Step 6: Final answer
    x = 52,244.80

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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.