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Finding the Fourth Proportional to 18,595.52, 25,649.76 and 11,883.20

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Solution

The fourth proportional to 18,595.52, 25,649.76 and 11,883.20 is: 16,391.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,595.52 : 25,649.76 = 11,883.20 : x
  2. Step 2: Convert to fraction form
    18,595.52/25,649.76 = 11,883.20/x
  3. Step 3: Cross multiply
    18,595.52x = 25,649.76 × 11,883.20
  4. Step 4: Simplify right side
    18,595.52x = 304,801,228.03
  5. Step 5: Solve for x
    x = 304,801,228.03/18,595.52
  6. Step 6: Final answer
    x = 16,391.11

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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.