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Finding the Fourth Proportional to 18,030.23, 24,881.66 and 9,963.66

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Solution

The fourth proportional to 18,030.23, 24,881.66 and 9,963.66 is: 13,749.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,030.23 : 24,881.66 = 9,963.66 : x
  2. Step 2: Convert to fraction form
    18,030.23/24,881.66 = 9,963.66/x
  3. Step 3: Cross multiply
    18,030.23x = 24,881.66 × 9,963.66
  4. Step 4: Simplify right side
    18,030.23x = 247,912,350.66
  5. Step 5: Solve for x
    x = 247,912,350.66/18,030.23
  6. Step 6: Final answer
    x = 13,749.82

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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.