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Finding the Fourth Proportional to 8,981.99, 12,394.65 and 5,002.38

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Solution

The fourth proportional to 8,981.99, 12,394.65 and 5,002.38 is: 6,903.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,981.99 : 12,394.65 = 5,002.38 : x
  2. Step 2: Convert to fraction form
    8,981.99/12,394.65 = 5,002.38/x
  3. Step 3: Cross multiply
    8,981.99x = 12,394.65 × 5,002.38
  4. Step 4: Simplify right side
    8,981.99x = 62,002,749.27
  5. Step 5: Solve for x
    x = 62,002,749.27/8,981.99
  6. Step 6: Final answer
    x = 6,903.01

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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.