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Finding the Fourth Proportional to 23,165.70, 34,721.70 and 10,659.48

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Solution

The fourth proportional to 23,165.70, 34,721.70 and 10,659.48 is: 15,976.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,165.70 : 34,721.70 = 10,659.48 : x
  2. Step 2: Convert to fraction form
    23,165.70/34,721.70 = 10,659.48/x
  3. Step 3: Cross multiply
    23,165.70x = 34,721.70 × 10,659.48
  4. Step 4: Simplify right side
    23,165.70x = 370,115,266.72
  5. Step 5: Solve for x
    x = 370,115,266.72/23,165.70
  6. Step 6: Final answer
    x = 15,976.87

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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.