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Finding the Fourth Proportional to 18,451.52, 27,653.52 and 6,750.80

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Solution

The fourth proportional to 18,451.52, 27,653.52 and 6,750.80 is: 10,117.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,451.52 : 27,653.52 = 6,750.80 : x
  2. Step 2: Convert to fraction form
    18,451.52/27,653.52 = 6,750.80/x
  3. Step 3: Cross multiply
    18,451.52x = 27,653.52 × 6,750.80
  4. Step 4: Simplify right side
    18,451.52x = 186,683,382.82
  5. Step 5: Solve for x
    x = 186,683,382.82/18,451.52
  6. Step 6: Final answer
    x = 10,117.51

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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.