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Finding the Fourth Proportional to 18,101.44, 24,978.66 and 11,030.14

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Solution

The fourth proportional to 18,101.44, 24,978.66 and 11,030.14 is: 15,220.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,101.44 : 24,978.66 = 11,030.14 : x
  2. Step 2: Convert to fraction form
    18,101.44/24,978.66 = 11,030.14/x
  3. Step 3: Cross multiply
    18,101.44x = 24,978.66 × 11,030.14
  4. Step 4: Simplify right side
    18,101.44x = 275,518,116.81
  5. Step 5: Solve for x
    x = 275,518,116.81/18,101.44
  6. Step 6: Final answer
    x = 15,220.78

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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.