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Finding the Fourth Proportional to 16,057.20, 24,085.80 and 13,138.80

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Solution

The fourth proportional to 16,057.20, 24,085.80 and 13,138.80 is: 19,708.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,057.20 : 24,085.80 = 13,138.80 : x
  2. Step 2: Convert to fraction form
    16,057.20/24,085.80 = 13,138.80/x
  3. Step 3: Cross multiply
    16,057.20x = 24,085.80 × 13,138.80
  4. Step 4: Simplify right side
    16,057.20x = 316,458,509.04
  5. Step 5: Solve for x
    x = 316,458,509.04/16,057.20
  6. Step 6: Final answer
    x = 19,708.20

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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.