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Finding the Fourth Proportional to 70,166.39, 105,291.09 and 25,824.29

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Solution

The fourth proportional to 70,166.39, 105,291.09 and 25,824.29 is: 38,751.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,166.39 : 105,291.09 = 25,824.29 : x
  2. Step 2: Convert to fraction form
    70,166.39/105,291.09 = 25,824.29/x
  3. Step 3: Cross multiply
    70,166.39x = 105,291.09 × 25,824.29
  4. Step 4: Simplify right side
    70,166.39x = 2,719,067,116.12
  5. Step 5: Solve for x
    x = 2,719,067,116.12/70,166.39
  6. Step 6: Final answer
    x = 38,751.71

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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.