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Finding the Fourth Proportional to 55,618.72, 83,344.32 and 33,407.68

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Solution

The fourth proportional to 55,618.72, 83,344.32 and 33,407.68 is: 50,061.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,618.72 : 83,344.32 = 33,407.68 : x
  2. Step 2: Convert to fraction form
    55,618.72/83,344.32 = 33,407.68/x
  3. Step 3: Cross multiply
    55,618.72x = 83,344.32 × 33,407.68
  4. Step 4: Simplify right side
    55,618.72x = 2,784,340,372.38
  5. Step 5: Solve for x
    x = 2,784,340,372.38/55,618.72
  6. Step 6: Final answer
    x = 50,061.21

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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.