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Finding the Fourth Proportional to 70,212.13, 96,892.78 and 38,381.03

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Solution

The fourth proportional to 70,212.13, 96,892.78 and 38,381.03 is: 52,965.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,212.13 : 96,892.78 = 38,381.03 : x
  2. Step 2: Convert to fraction form
    70,212.13/96,892.78 = 38,381.03/x
  3. Step 3: Cross multiply
    70,212.13x = 96,892.78 × 38,381.03
  4. Step 4: Simplify right side
    70,212.13x = 3,718,844,842.24
  5. Step 5: Solve for x
    x = 3,718,844,842.24/70,212.13
  6. Step 6: Final answer
    x = 52,965.85

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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.