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Finding the Fourth Proportional to 69,012.72, 103,496.92 and 22,254.64

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Solution

The fourth proportional to 69,012.72, 103,496.92 and 22,254.64 is: 33,374.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,012.72 : 103,496.92 = 22,254.64 : x
  2. Step 2: Convert to fraction form
    69,012.72/103,496.92 = 22,254.64/x
  3. Step 3: Cross multiply
    69,012.72x = 103,496.92 × 22,254.64
  4. Step 4: Simplify right side
    69,012.72x = 2,303,286,695.71
  5. Step 5: Solve for x
    x = 2,303,286,695.71/69,012.72
  6. Step 6: Final answer
    x = 33,374.81

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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.