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Finding the Fourth Proportional to 71,216.68, 98,275.01 and 38,944.89

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Solution

The fourth proportional to 71,216.68, 98,275.01 and 38,944.89 is: 53,741.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,216.68 : 98,275.01 = 38,944.89 : x
  2. Step 2: Convert to fraction form
    71,216.68/98,275.01 = 38,944.89/x
  3. Step 3: Cross multiply
    71,216.68x = 98,275.01 × 38,944.89
  4. Step 4: Simplify right side
    71,216.68x = 3,827,309,551.56
  5. Step 5: Solve for x
    x = 3,827,309,551.56/71,216.68
  6. Step 6: Final answer
    x = 53,741.76

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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.