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Finding the Fourth Proportional to 19,265.70, 26,587.20 and 10,882.20

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Solution

The fourth proportional to 19,265.70, 26,587.20 and 10,882.20 is: 15,017.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,265.70 : 26,587.20 = 10,882.20 : x
  2. Step 2: Convert to fraction form
    19,265.70/26,587.20 = 10,882.20/x
  3. Step 3: Cross multiply
    19,265.70x = 26,587.20 × 10,882.20
  4. Step 4: Simplify right side
    19,265.70x = 289,327,227.84
  5. Step 5: Solve for x
    x = 289,327,227.84/19,265.70
  6. Step 6: Final answer
    x = 15,017.74

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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.