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Finding the Fourth Proportional to 70,093.72, 96,726.24 and 39,881.56

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Solution

The fourth proportional to 70,093.72, 96,726.24 and 39,881.56 is: 55,034.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,093.72 : 96,726.24 = 39,881.56 : x
  2. Step 2: Convert to fraction form
    70,093.72/96,726.24 = 39,881.56/x
  3. Step 3: Cross multiply
    70,093.72x = 96,726.24 × 39,881.56
  4. Step 4: Simplify right side
    70,093.72x = 3,857,593,344.13
  5. Step 5: Solve for x
    x = 3,857,593,344.13/70,093.72
  6. Step 6: Final answer
    x = 55,034.79

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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.