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Finding the Fourth Proportional to 18,832.16, 25,988.15 and 10,874.22

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Solution

The fourth proportional to 18,832.16, 25,988.15 and 10,874.22 is: 15,006.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,832.16 : 25,988.15 = 10,874.22 : x
  2. Step 2: Convert to fraction form
    18,832.16/25,988.15 = 10,874.22/x
  3. Step 3: Cross multiply
    18,832.16x = 25,988.15 × 10,874.22
  4. Step 4: Simplify right side
    18,832.16x = 282,600,790.22
  5. Step 5: Solve for x
    x = 282,600,790.22/18,832.16
  6. Step 6: Final answer
    x = 15,006.28

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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.