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Finding the Fourth Proportional to 70,593.78, 105,882.51 and 26,221.44

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Solution

The fourth proportional to 70,593.78, 105,882.51 and 26,221.44 is: 39,329.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,593.78 : 105,882.51 = 26,221.44 : x
  2. Step 2: Convert to fraction form
    70,593.78/105,882.51 = 26,221.44/x
  3. Step 3: Cross multiply
    70,593.78x = 105,882.51 × 26,221.44
  4. Step 4: Simplify right side
    70,593.78x = 2,776,391,883.01
  5. Step 5: Solve for x
    x = 2,776,391,883.01/70,593.78
  6. Step 6: Final answer
    x = 39,329.13

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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.