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Finding the Fourth Proportional to 36,820.80, 55,231.20 and 34,342.20

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Solution

The fourth proportional to 36,820.80, 55,231.20 and 34,342.20 is: 51,513.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,820.80 : 55,231.20 = 34,342.20 : x
  2. Step 2: Convert to fraction form
    36,820.80/55,231.20 = 34,342.20/x
  3. Step 3: Cross multiply
    36,820.80x = 55,231.20 × 34,342.20
  4. Step 4: Simplify right side
    36,820.80x = 1,896,760,916.64
  5. Step 5: Solve for x
    x = 1,896,760,916.64/36,820.80
  6. Step 6: Final answer
    x = 51,513.30

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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.