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Finding the Fourth Proportional to 70,112.68, 105,012.17 and 32,616.56

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Solution

The fourth proportional to 70,112.68, 105,012.17 and 32,616.56 is: 48,851.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,112.68 : 105,012.17 = 32,616.56 : x
  2. Step 2: Convert to fraction form
    70,112.68/105,012.17 = 32,616.56/x
  3. Step 3: Cross multiply
    70,112.68x = 105,012.17 × 32,616.56
  4. Step 4: Simplify right side
    70,112.68x = 3,425,135,965.29
  5. Step 5: Solve for x
    x = 3,425,135,965.29/70,112.68
  6. Step 6: Final answer
    x = 48,851.88

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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.