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Finding the Fourth Proportional to 26,643.70, 39,965.55 and 25,506.10

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Solution

The fourth proportional to 26,643.70, 39,965.55 and 25,506.10 is: 38,259.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,643.70 : 39,965.55 = 25,506.10 : x
  2. Step 2: Convert to fraction form
    26,643.70/39,965.55 = 25,506.10/x
  3. Step 3: Cross multiply
    26,643.70x = 39,965.55 × 25,506.10
  4. Step 4: Simplify right side
    26,643.70x = 1,019,365,314.86
  5. Step 5: Solve for x
    x = 1,019,365,314.86/26,643.70
  6. Step 6: Final answer
    x = 38,259.15

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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.