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Finding the Fourth Proportional to 18,588.76, 25,644.12 and 11,035.39

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Solution

The fourth proportional to 18,588.76, 25,644.12 and 11,035.39 is: 15,223.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,588.76 : 25,644.12 = 11,035.39 : x
  2. Step 2: Convert to fraction form
    18,588.76/25,644.12 = 11,035.39/x
  3. Step 3: Cross multiply
    18,588.76x = 25,644.12 × 11,035.39
  4. Step 4: Simplify right side
    18,588.76x = 282,992,865.41
  5. Step 5: Solve for x
    x = 282,992,865.41/18,588.76
  6. Step 6: Final answer
    x = 15,223.87

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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.