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Finding the Fourth Proportional to 69,641.40, 104,462.10 and 22,895.80

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Solution

The fourth proportional to 69,641.40, 104,462.10 and 22,895.80 is: 34,343.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,641.40 : 104,462.10 = 22,895.80 : x
  2. Step 2: Convert to fraction form
    69,641.40/104,462.10 = 22,895.80/x
  3. Step 3: Cross multiply
    69,641.40x = 104,462.10 × 22,895.80
  4. Step 4: Simplify right side
    69,641.40x = 2,391,743,349.18
  5. Step 5: Solve for x
    x = 2,391,743,349.18/69,641.40
  6. Step 6: Final answer
    x = 34,343.70

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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.