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Finding the Fourth Proportional to 69,408.06, 104,111.08 and 16,817.20

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Solution

The fourth proportional to 69,408.06, 104,111.08 and 16,817.20 is: 25,225.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,408.06 : 104,111.08 = 16,817.20 : x
  2. Step 2: Convert to fraction form
    69,408.06/104,111.08 = 16,817.20/x
  3. Step 3: Cross multiply
    69,408.06x = 104,111.08 × 16,817.20
  4. Step 4: Simplify right side
    69,408.06x = 1,750,856,854.58
  5. Step 5: Solve for x
    x = 1,750,856,854.58/69,408.06
  6. Step 6: Final answer
    x = 25,225.56

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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.