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Finding the Fourth Proportional to 17,612.16, 26,428.97 and 7,080.20

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Solution

The fourth proportional to 17,612.16, 26,428.97 and 7,080.20 is: 10,624.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,612.16 : 26,428.97 = 7,080.20 : x
  2. Step 2: Convert to fraction form
    17,612.16/26,428.97 = 7,080.20/x
  3. Step 3: Cross multiply
    17,612.16x = 26,428.97 × 7,080.20
  4. Step 4: Simplify right side
    17,612.16x = 187,122,393.39
  5. Step 5: Solve for x
    x = 187,122,393.39/17,612.16
  6. Step 6: Final answer
    x = 10,624.61

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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.