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Finding the Fourth Proportional to 18,216.52, 27,324.81 and 5,068.90

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Solution

The fourth proportional to 18,216.52, 27,324.81 and 5,068.90 is: 7,603.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,216.52 : 27,324.81 = 5,068.90 : x
  2. Step 2: Convert to fraction form
    18,216.52/27,324.81 = 5,068.90/x
  3. Step 3: Cross multiply
    18,216.52x = 27,324.81 × 5,068.90
  4. Step 4: Simplify right side
    18,216.52x = 138,506,729.41
  5. Step 5: Solve for x
    x = 138,506,729.41/18,216.52
  6. Step 6: Final answer
    x = 7,603.36

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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.