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Finding the Fourth Proportional to 17,615.64, 26,372.20 and 13,708.20

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Solution

The fourth proportional to 17,615.64, 26,372.20 and 13,708.20 is: 20,522.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,615.64 : 26,372.20 = 13,708.20 : x
  2. Step 2: Convert to fraction form
    17,615.64/26,372.20 = 13,708.20/x
  3. Step 3: Cross multiply
    17,615.64x = 26,372.20 × 13,708.20
  4. Step 4: Simplify right side
    17,615.64x = 361,515,392.04
  5. Step 5: Solve for x
    x = 361,515,392.04/17,615.64
  6. Step 6: Final answer
    x = 20,522.41

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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.