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Finding the Fourth Proportional to 27,887.60, 38,483.16 and 25,658.48

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Solution

The fourth proportional to 27,887.60, 38,483.16 and 25,658.48 is: 35,407.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,887.60 : 38,483.16 = 25,658.48 : x
  2. Step 2: Convert to fraction form
    27,887.60/38,483.16 = 25,658.48/x
  3. Step 3: Cross multiply
    27,887.60x = 38,483.16 × 25,658.48
  4. Step 4: Simplify right side
    27,887.60x = 987,419,391.20
  5. Step 5: Solve for x
    x = 987,419,391.20/27,887.60
  6. Step 6: Final answer
    x = 35,407.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.