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Finding the Fourth Proportional to 69,121.77, 103,699.14 and 22,374.66

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Solution

The fourth proportional to 69,121.77, 103,699.14 and 22,374.66 is: 33,567.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,121.77 : 103,699.14 = 22,374.66 : x
  2. Step 2: Convert to fraction form
    69,121.77/103,699.14 = 22,374.66/x
  3. Step 3: Cross multiply
    69,121.77x = 103,699.14 × 22,374.66
  4. Step 4: Simplify right side
    69,121.77x = 2,320,232,999.79
  5. Step 5: Solve for x
    x = 2,320,232,999.79/69,121.77
  6. Step 6: Final answer
    x = 33,567.33

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1.5x scale

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.