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Finding the Fourth Proportional to 68,963.40, 103,445.12 and 22,216.27

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Solution

The fourth proportional to 68,963.40, 103,445.12 and 22,216.27 is: 33,324.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,963.40 : 103,445.12 = 22,216.27 : x
  2. Step 2: Convert to fraction form
    68,963.40/103,445.12 = 22,216.27/x
  3. Step 3: Cross multiply
    68,963.40x = 103,445.12 × 22,216.27
  4. Step 4: Simplify right side
    68,963.40x = 2,298,164,716.10
  5. Step 5: Solve for x
    x = 2,298,164,716.10/68,963.40
  6. Step 6: Final answer
    x = 33,324.41

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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.