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Finding the Fourth Proportional to 17,876.40, 24,645.24 and 15,077.04

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Solution

The fourth proportional to 17,876.40, 24,645.24 and 15,077.04 is: 20,785.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,876.40 : 24,645.24 = 15,077.04 : x
  2. Step 2: Convert to fraction form
    17,876.40/24,645.24 = 15,077.04/x
  3. Step 3: Cross multiply
    17,876.40x = 24,645.24 × 15,077.04
  4. Step 4: Simplify right side
    17,876.40x = 371,577,269.29
  5. Step 5: Solve for x
    x = 371,577,269.29/17,876.40
  6. Step 6: Final answer
    x = 20,785.91

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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.