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Finding the Fourth Proportional to 26,398.35, 39,600.99 and 8,622.81

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Solution

The fourth proportional to 26,398.35, 39,600.99 and 8,622.81 is: 12,935.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,398.35 : 39,600.99 = 8,622.81 : x
  2. Step 2: Convert to fraction form
    26,398.35/39,600.99 = 8,622.81/x
  3. Step 3: Cross multiply
    26,398.35x = 39,600.99 × 8,622.81
  4. Step 4: Simplify right side
    26,398.35x = 341,471,812.58
  5. Step 5: Solve for x
    x = 341,471,812.58/26,398.35
  6. Step 6: Final answer
    x = 12,935.35

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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.