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Finding the Fourth Proportional to 63,921.31, 88,209.66 and 36,696.59

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Solution

The fourth proportional to 63,921.31, 88,209.66 and 36,696.59 is: 50,640.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,921.31 : 88,209.66 = 36,696.59 : x
  2. Step 2: Convert to fraction form
    63,921.31/88,209.66 = 36,696.59/x
  3. Step 3: Cross multiply
    63,921.31x = 88,209.66 × 36,696.59
  4. Step 4: Simplify right side
    63,921.31x = 3,236,993,727.06
  5. Step 5: Solve for x
    x = 3,236,993,727.06/63,921.31
  6. Step 6: Final answer
    x = 50,640.29

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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.