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Finding the Fourth Proportional to 26,588.45, 39,882.68 and 7,868.68

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Solution

The fourth proportional to 26,588.45, 39,882.68 and 7,868.68 is: 11,803.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,588.45 : 39,882.68 = 7,868.68 : x
  2. Step 2: Convert to fraction form
    26,588.45/39,882.68 = 7,868.68/x
  3. Step 3: Cross multiply
    26,588.45x = 39,882.68 × 7,868.68
  4. Step 4: Simplify right side
    26,588.45x = 313,823,936.92
  5. Step 5: Solve for x
    x = 313,823,936.92/26,588.45
  6. Step 6: Final answer
    x = 11,803.02

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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.