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Finding the Fourth Proportional to 18,649.54, 25,735.98 and 10,151.52

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Solution

The fourth proportional to 18,649.54, 25,735.98 and 10,151.52 is: 14,008.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,649.54 : 25,735.98 = 10,151.52 : x
  2. Step 2: Convert to fraction form
    18,649.54/25,735.98 = 10,151.52/x
  3. Step 3: Cross multiply
    18,649.54x = 25,735.98 × 10,151.52
  4. Step 4: Simplify right side
    18,649.54x = 261,259,315.69
  5. Step 5: Solve for x
    x = 261,259,315.69/18,649.54
  6. Step 6: Final answer
    x = 14,008.89

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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.