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Finding the Fourth Proportional to 14,965.37, 20,652.09 and 8,251.28

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Solution

The fourth proportional to 14,965.37, 20,652.09 and 8,251.28 is: 11,386.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,965.37 : 20,652.09 = 8,251.28 : x
  2. Step 2: Convert to fraction form
    14,965.37/20,652.09 = 8,251.28/x
  3. Step 3: Cross multiply
    14,965.37x = 20,652.09 × 8,251.28
  4. Step 4: Simplify right side
    14,965.37x = 170,406,177.18
  5. Step 5: Solve for x
    x = 170,406,177.18/14,965.37
  6. Step 6: Final answer
    x = 11,386.70

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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.