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Finding the Fourth Proportional to 32,815.80, 49,223.70 and 9,123.30

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Solution

The fourth proportional to 32,815.80, 49,223.70 and 9,123.30 is: 13,684.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,815.80 : 49,223.70 = 9,123.30 : x
  2. Step 2: Convert to fraction form
    32,815.80/49,223.70 = 9,123.30/x
  3. Step 3: Cross multiply
    32,815.80x = 49,223.70 × 9,123.30
  4. Step 4: Simplify right side
    32,815.80x = 449,082,582.21
  5. Step 5: Solve for x
    x = 449,082,582.21/32,815.80
  6. Step 6: Final answer
    x = 13,684.95

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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.