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Finding the Fourth Proportional to 16,807.84, 25,220.22 and 7,449.88

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Solution

The fourth proportional to 16,807.84, 25,220.22 and 7,449.88 is: 11,178.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,807.84 : 25,220.22 = 7,449.88 : x
  2. Step 2: Convert to fraction form
    16,807.84/25,220.22 = 7,449.88/x
  3. Step 3: Cross multiply
    16,807.84x = 25,220.22 × 7,449.88
  4. Step 4: Simplify right side
    16,807.84x = 187,887,612.57
  5. Step 5: Solve for x
    x = 187,887,612.57/16,807.84
  6. Step 6: Final answer
    x = 11,178.57

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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.