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Finding the Fourth Proportional to 17,141.80, 25,712.70 and 10,460.20

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Solution

The fourth proportional to 17,141.80, 25,712.70 and 10,460.20 is: 15,690.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,141.80 : 25,712.70 = 10,460.20 : x
  2. Step 2: Convert to fraction form
    17,141.80/25,712.70 = 10,460.20/x
  3. Step 3: Cross multiply
    17,141.80x = 25,712.70 × 10,460.20
  4. Step 4: Simplify right side
    17,141.80x = 268,959,984.54
  5. Step 5: Solve for x
    x = 268,959,984.54/17,141.80
  6. Step 6: Final answer
    x = 15,690.30

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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.