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Finding the Fourth Proportional to 70,716.52, 97,589.22 and 38,887.48

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Solution

The fourth proportional to 70,716.52, 97,589.22 and 38,887.48 is: 53,664.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,716.52 : 97,589.22 = 38,887.48 : x
  2. Step 2: Convert to fraction form
    70,716.52/97,589.22 = 38,887.48/x
  3. Step 3: Cross multiply
    70,716.52x = 97,589.22 × 38,887.48
  4. Step 4: Simplify right side
    70,716.52x = 3,794,998,840.97
  5. Step 5: Solve for x
    x = 3,794,998,840.97/70,716.52
  6. Step 6: Final answer
    x = 53,664.95

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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.