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Finding the Fourth Proportional to 16,710.80, 25,069.80 and 5,025.20

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Solution

The fourth proportional to 16,710.80, 25,069.80 and 5,025.20 is: 7,538.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,710.80 : 25,069.80 = 5,025.20 : x
  2. Step 2: Convert to fraction form
    16,710.80/25,069.80 = 5,025.20/x
  3. Step 3: Cross multiply
    16,710.80x = 25,069.80 × 5,025.20
  4. Step 4: Simplify right side
    16,710.80x = 125,980,758.96
  5. Step 5: Solve for x
    x = 125,980,758.96/16,710.80
  6. Step 6: Final answer
    x = 7,538.88

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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.