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Finding the Fourth Proportional to 17,541.90, 24,165.42 and 15,015.90

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Solution

The fourth proportional to 17,541.90, 24,165.42 and 15,015.90 is: 20,685.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,541.90 : 24,165.42 = 15,015.90 : x
  2. Step 2: Convert to fraction form
    17,541.90/24,165.42 = 15,015.90/x
  3. Step 3: Cross multiply
    17,541.90x = 24,165.42 × 15,015.90
  4. Step 4: Simplify right side
    17,541.90x = 362,865,530.18
  5. Step 5: Solve for x
    x = 362,865,530.18/17,541.90
  6. Step 6: Final answer
    x = 20,685.65

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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.