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Finding the Fourth Proportional to 16,952.80, 25,400.40 and 14,015.20

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Solution

The fourth proportional to 16,952.80, 25,400.40 and 14,015.20 is: 20,998.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,952.80 : 25,400.40 = 14,015.20 : x
  2. Step 2: Convert to fraction form
    16,952.80/25,400.40 = 14,015.20/x
  3. Step 3: Cross multiply
    16,952.80x = 25,400.40 × 14,015.20
  4. Step 4: Simplify right side
    16,952.80x = 355,991,686.08
  5. Step 5: Solve for x
    x = 355,991,686.08/16,952.80
  6. Step 6: Final answer
    x = 20,998.99

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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.