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Finding the Fourth Proportional to 69,287.84, 103,942.72 and 22,529.76

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Solution

The fourth proportional to 69,287.84, 103,942.72 and 22,529.76 is: 33,798.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,287.84 : 103,942.72 = 22,529.76 : x
  2. Step 2: Convert to fraction form
    69,287.84/103,942.72 = 22,529.76/x
  3. Step 3: Cross multiply
    69,287.84x = 103,942.72 × 22,529.76
  4. Step 4: Simplify right side
    69,287.84x = 2,341,804,535.35
  5. Step 5: Solve for x
    x = 2,341,804,535.35/69,287.84
  6. Step 6: Final answer
    x = 33,798.20

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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.