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Finding the Fourth Proportional to 69,919.32, 104,877.96 and 17,328.44

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Solution

The fourth proportional to 69,919.32, 104,877.96 and 17,328.44 is: 25,992.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,919.32 : 104,877.96 = 17,328.44 : x
  2. Step 2: Convert to fraction form
    69,919.32/104,877.96 = 17,328.44/x
  3. Step 3: Cross multiply
    69,919.32x = 104,877.96 × 17,328.44
  4. Step 4: Simplify right side
    69,919.32x = 1,817,371,437.18
  5. Step 5: Solve for x
    x = 1,817,371,437.18/69,919.32
  6. Step 6: Final answer
    x = 25,992.41

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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.