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Finding the Fourth Proportional to 26,376.80, 39,586.80 and 25,512.80

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Solution

The fourth proportional to 26,376.80, 39,586.80 and 25,512.80 is: 38,290.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,376.80 : 39,586.80 = 25,512.80 : x
  2. Step 2: Convert to fraction form
    26,376.80/39,586.80 = 25,512.80/x
  3. Step 3: Cross multiply
    26,376.80x = 39,586.80 × 25,512.80
  4. Step 4: Simplify right side
    26,376.80x = 1,009,970,111.04
  5. Step 5: Solve for x
    x = 1,009,970,111.04/26,376.80
  6. Step 6: Final answer
    x = 38,290.09

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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.