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Finding the Fourth Proportional to 34,868.40, 48,129.40 and 22,293.20

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Solution

The fourth proportional to 34,868.40, 48,129.40 and 22,293.20 is: 30,771.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,868.40 : 48,129.40 = 22,293.20 : x
  2. Step 2: Convert to fraction form
    34,868.40/48,129.40 = 22,293.20/x
  3. Step 3: Cross multiply
    34,868.40x = 48,129.40 × 22,293.20
  4. Step 4: Simplify right side
    34,868.40x = 1,072,958,340.08
  5. Step 5: Solve for x
    x = 1,072,958,340.08/34,868.40
  6. Step 6: Final answer
    x = 30,771.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.