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Finding the Fourth Proportional to 38,703.40, 57,996.22 and 17,631.16

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Solution

The fourth proportional to 38,703.40, 57,996.22 and 17,631.16 is: 26,419.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,703.40 : 57,996.22 = 17,631.16 : x
  2. Step 2: Convert to fraction form
    38,703.40/57,996.22 = 17,631.16/x
  3. Step 3: Cross multiply
    38,703.40x = 57,996.22 × 17,631.16
  4. Step 4: Simplify right side
    38,703.40x = 1,022,540,634.22
  5. Step 5: Solve for x
    x = 1,022,540,634.22/38,703.40
  6. Step 6: Final answer
    x = 26,419.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.