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Finding the Fourth Proportional to 18,402.86, 27,605.17 and 5,256.14

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Solution

The fourth proportional to 18,402.86, 27,605.17 and 5,256.14 is: 7,884.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,402.86 : 27,605.17 = 5,256.14 : x
  2. Step 2: Convert to fraction form
    18,402.86/27,605.17 = 5,256.14/x
  3. Step 3: Cross multiply
    18,402.86x = 27,605.17 × 5,256.14
  4. Step 4: Simplify right side
    18,402.86x = 145,096,638.24
  5. Step 5: Solve for x
    x = 145,096,638.24/18,402.86
  6. Step 6: Final answer
    x = 7,884.46

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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.