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Finding the Fourth Proportional to 17,159.20, 25,741.20 and 7,298.40

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Solution

The fourth proportional to 17,159.20, 25,741.20 and 7,298.40 is: 10,948.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,159.20 : 25,741.20 = 7,298.40 : x
  2. Step 2: Convert to fraction form
    17,159.20/25,741.20 = 7,298.40/x
  3. Step 3: Cross multiply
    17,159.20x = 25,741.20 × 7,298.40
  4. Step 4: Simplify right side
    17,159.20x = 187,869,574.08
  5. Step 5: Solve for x
    x = 187,869,574.08/17,159.20
  6. Step 6: Final answer
    x = 10,948.62

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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.