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Finding the Fourth Proportional to 22,129.95, 33,195.87 and 7,340.16

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Solution

The fourth proportional to 22,129.95, 33,195.87 and 7,340.16 is: 11,010.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,129.95 : 33,195.87 = 7,340.16 : x
  2. Step 2: Convert to fraction form
    22,129.95/33,195.87 = 7,340.16/x
  3. Step 3: Cross multiply
    22,129.95x = 33,195.87 × 7,340.16
  4. Step 4: Simplify right side
    22,129.95x = 243,662,997.14
  5. Step 5: Solve for x
    x = 243,662,997.14/22,129.95
  6. Step 6: Final answer
    x = 11,010.55

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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.