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Finding the Fourth Proportional to 17,371.20, 26,056.80 and 15,475.80

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Solution

The fourth proportional to 17,371.20, 26,056.80 and 15,475.80 is: 23,213.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,371.20 : 26,056.80 = 15,475.80 : x
  2. Step 2: Convert to fraction form
    17,371.20/26,056.80 = 15,475.80/x
  3. Step 3: Cross multiply
    17,371.20x = 26,056.80 × 15,475.80
  4. Step 4: Simplify right side
    17,371.20x = 403,249,825.44
  5. Step 5: Solve for x
    x = 403,249,825.44/17,371.20
  6. Step 6: Final answer
    x = 23,213.70

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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.