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Finding the Fourth Proportional to 18,658.44, 25,750.44 and 10,702.08

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Solution

The fourth proportional to 18,658.44, 25,750.44 and 10,702.08 is: 14,769.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,658.44 : 25,750.44 = 10,702.08 : x
  2. Step 2: Convert to fraction form
    18,658.44/25,750.44 = 10,702.08/x
  3. Step 3: Cross multiply
    18,658.44x = 25,750.44 × 10,702.08
  4. Step 4: Simplify right side
    18,658.44x = 275,583,268.92
  5. Step 5: Solve for x
    x = 275,583,268.92/18,658.44
  6. Step 6: Final answer
    x = 14,769.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.