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Finding the Fourth Proportional to 25,991.70, 38,983.49 and 7,269.76

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Solution

The fourth proportional to 25,991.70, 38,983.49 and 7,269.76 is: 10,903.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,991.70 : 38,983.49 = 7,269.76 : x
  2. Step 2: Convert to fraction form
    25,991.70/38,983.49 = 7,269.76/x
  3. Step 3: Cross multiply
    25,991.70x = 38,983.49 × 7,269.76
  4. Step 4: Simplify right side
    25,991.70x = 283,400,616.26
  5. Step 5: Solve for x
    x = 283,400,616.26/25,991.70
  6. Step 6: Final answer
    x = 10,903.50

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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.