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Finding the Fourth Proportional to 17,615.70, 26,425.71 and 7,757.46

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Solution

The fourth proportional to 17,615.70, 26,425.71 and 7,757.46 is: 11,637.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,615.70 : 26,425.71 = 7,757.46 : x
  2. Step 2: Convert to fraction form
    17,615.70/26,425.71 = 7,757.46/x
  3. Step 3: Cross multiply
    17,615.70x = 26,425.71 × 7,757.46
  4. Step 4: Simplify right side
    17,615.70x = 204,996,388.30
  5. Step 5: Solve for x
    x = 204,996,388.30/17,615.70
  6. Step 6: Final answer
    x = 11,637.14

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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.