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Finding the Fourth Proportional to 26,424, 39,603.60 and 15,887.52

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Solution

The fourth proportional to 26,424, 39,603.60 and 15,887.52 is: 23,811.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,424 : 39,603.60 = 15,887.52 : x
  2. Step 2: Convert to fraction form
    26,424/39,603.60 = 15,887.52/x
  3. Step 3: Cross multiply
    26,424x = 39,603.60 × 15,887.52
  4. Step 4: Simplify right side
    26,424x = 629,202,987.07
  5. Step 5: Solve for x
    x = 629,202,987.07/26,424
  6. Step 6: Final answer
    x = 23,811.80

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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.