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Finding the Fourth Proportional to 36,610.80, 54,916.20 and 10,315.20

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Solution

The fourth proportional to 36,610.80, 54,916.20 and 10,315.20 is: 15,472.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,610.80 : 54,916.20 = 10,315.20 : x
  2. Step 2: Convert to fraction form
    36,610.80/54,916.20 = 10,315.20/x
  3. Step 3: Cross multiply
    36,610.80x = 54,916.20 × 10,315.20
  4. Step 4: Simplify right side
    36,610.80x = 566,471,586.24
  5. Step 5: Solve for x
    x = 566,471,586.24/36,610.80
  6. Step 6: Final answer
    x = 15,472.80

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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.