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Finding the Fourth Proportional to 18,400.86, 27,602.17 and 5,254.14

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Solution

The fourth proportional to 18,400.86, 27,602.17 and 5,254.14 is: 7,881.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,400.86 : 27,602.17 = 5,254.14 : x
  2. Step 2: Convert to fraction form
    18,400.86/27,602.17 = 5,254.14/x
  3. Step 3: Cross multiply
    18,400.86x = 27,602.17 × 5,254.14
  4. Step 4: Simplify right side
    18,400.86x = 145,025,665.48
  5. Step 5: Solve for x
    x = 145,025,665.48/18,400.86
  6. Step 6: Final answer
    x = 7,881.46

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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.