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Finding the Fourth Proportional to 18,344.56, 25,315.44 and 9,961.04

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Solution

The fourth proportional to 18,344.56, 25,315.44 and 9,961.04 is: 13,746.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,344.56 : 25,315.44 = 9,961.04 : x
  2. Step 2: Convert to fraction form
    18,344.56/25,315.44 = 9,961.04/x
  3. Step 3: Cross multiply
    18,344.56x = 25,315.44 × 9,961.04
  4. Step 4: Simplify right side
    18,344.56x = 252,168,110.46
  5. Step 5: Solve for x
    x = 252,168,110.46/18,344.56
  6. Step 6: Final answer
    x = 13,746.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.