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Finding the Fourth Proportional to 70,107.75, 105,161.85 and 17,517.24

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Solution

The fourth proportional to 70,107.75, 105,161.85 and 17,517.24 is: 26,275.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,107.75 : 105,161.85 = 17,517.24 : x
  2. Step 2: Convert to fraction form
    70,107.75/105,161.85 = 17,517.24/x
  3. Step 3: Cross multiply
    70,107.75x = 105,161.85 × 17,517.24
  4. Step 4: Simplify right side
    70,107.75x = 1,842,145,365.29
  5. Step 5: Solve for x
    x = 1,842,145,365.29/70,107.75
  6. Step 6: Final answer
    x = 26,275.92

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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.