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Finding the Fourth Proportional to 16,807.12, 25,188.78 and 7,449.82

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Solution

The fourth proportional to 16,807.12, 25,188.78 and 7,449.82 is: 11,165.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,807.12 : 25,188.78 = 7,449.82 : x
  2. Step 2: Convert to fraction form
    16,807.12/25,188.78 = 7,449.82/x
  3. Step 3: Cross multiply
    16,807.12x = 25,188.78 × 7,449.82
  4. Step 4: Simplify right side
    16,807.12x = 187,651,751.08
  5. Step 5: Solve for x
    x = 187,651,751.08/16,807.12
  6. Step 6: Final answer
    x = 11,165.02

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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.