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Finding the Fourth Proportional to 38,334.80, 57,502.20 and 10,254.80

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Solution

The fourth proportional to 38,334.80, 57,502.20 and 10,254.80 is: 15,382.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,334.80 : 57,502.20 = 10,254.80 : x
  2. Step 2: Convert to fraction form
    38,334.80/57,502.20 = 10,254.80/x
  3. Step 3: Cross multiply
    38,334.80x = 57,502.20 × 10,254.80
  4. Step 4: Simplify right side
    38,334.80x = 589,673,560.56
  5. Step 5: Solve for x
    x = 589,673,560.56/38,334.80
  6. Step 6: Final answer
    x = 15,382.20

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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.