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Finding the Fourth Proportional to 17,515.68, 24,175.68 and 11,548.40

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Solution

The fourth proportional to 17,515.68, 24,175.68 and 11,548.40 is: 15,939.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,515.68 : 24,175.68 = 11,548.40 : x
  2. Step 2: Convert to fraction form
    17,515.68/24,175.68 = 11,548.40/x
  3. Step 3: Cross multiply
    17,515.68x = 24,175.68 × 11,548.40
  4. Step 4: Simplify right side
    17,515.68x = 279,190,422.91
  5. Step 5: Solve for x
    x = 279,190,422.91/17,515.68
  6. Step 6: Final answer
    x = 15,939.46

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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.