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Finding the Fourth Proportional to 17,871.40, 26,826.30 and 10,095.40

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Solution

The fourth proportional to 17,871.40, 26,826.30 and 10,095.40 is: 15,153.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,871.40 : 26,826.30 = 10,095.40 : x
  2. Step 2: Convert to fraction form
    17,871.40/26,826.30 = 10,095.40/x
  3. Step 3: Cross multiply
    17,871.40x = 26,826.30 × 10,095.40
  4. Step 4: Simplify right side
    17,871.40x = 270,822,229.02
  5. Step 5: Solve for x
    x = 270,822,229.02/17,871.40
  6. Step 6: Final answer
    x = 15,153.95

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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.