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Finding the Fourth Proportional to 21,963.44, 32,948.28 and 7,167.68

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Solution

The fourth proportional to 21,963.44, 32,948.28 and 7,167.68 is: 10,752.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,963.44 : 32,948.28 = 7,167.68 : x
  2. Step 2: Convert to fraction form
    21,963.44/32,948.28 = 7,167.68/x
  3. Step 3: Cross multiply
    21,963.44x = 32,948.28 × 7,167.68
  4. Step 4: Simplify right side
    21,963.44x = 236,162,727.59
  5. Step 5: Solve for x
    x = 236,162,727.59/21,963.44
  6. Step 6: Final answer
    x = 10,752.54

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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.