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Finding the Fourth Proportional to 10,418.64, 14,378.12 and 5,943.12

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Solution

The fourth proportional to 10,418.64, 14,378.12 and 5,943.12 is: 8,201.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,418.64 : 14,378.12 = 5,943.12 : x
  2. Step 2: Convert to fraction form
    10,418.64/14,378.12 = 5,943.12/x
  3. Step 3: Cross multiply
    10,418.64x = 14,378.12 × 5,943.12
  4. Step 4: Simplify right side
    10,418.64x = 85,450,892.53
  5. Step 5: Solve for x
    x = 85,450,892.53/10,418.64
  6. Step 6: Final answer
    x = 8,201.73

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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.