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Finding the Fourth Proportional to 22,181.88, 30,610.88 and 12,110.32

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Solution

The fourth proportional to 22,181.88, 30,610.88 and 12,110.32 is: 16,712.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,181.88 : 30,610.88 = 12,110.32 : x
  2. Step 2: Convert to fraction form
    22,181.88/30,610.88 = 12,110.32/x
  3. Step 3: Cross multiply
    22,181.88x = 30,610.88 × 12,110.32
  4. Step 4: Simplify right side
    22,181.88x = 370,707,552.28
  5. Step 5: Solve for x
    x = 370,707,552.28/22,181.88
  6. Step 6: Final answer
    x = 16,712.18

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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.