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Finding the Fourth Proportional to 8,943.41, 13,407.14 and 3,392.99

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Solution

The fourth proportional to 8,943.41, 13,407.14 and 3,392.99 is: 5,086.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,943.41 : 13,407.14 = 3,392.99 : x
  2. Step 2: Convert to fraction form
    8,943.41/13,407.14 = 3,392.99/x
  3. Step 3: Cross multiply
    8,943.41x = 13,407.14 × 3,392.99
  4. Step 4: Simplify right side
    8,943.41x = 45,490,207.95
  5. Step 5: Solve for x
    x = 45,490,207.95/8,943.41
  6. Step 6: Final answer
    x = 5,086.45

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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.