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Finding the Fourth Proportional to 32,815.80, 49,223.70 and 22,318.20

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Solution

The fourth proportional to 32,815.80, 49,223.70 and 22,318.20 is: 33,477.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,815.80 : 49,223.70 = 22,318.20 : x
  2. Step 2: Convert to fraction form
    32,815.80/49,223.70 = 22,318.20/x
  3. Step 3: Cross multiply
    32,815.80x = 49,223.70 × 22,318.20
  4. Step 4: Simplify right side
    32,815.80x = 1,098,584,381.34
  5. Step 5: Solve for x
    x = 1,098,584,381.34/32,815.80
  6. Step 6: Final answer
    x = 33,477.30

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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.