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Finding the Fourth Proportional to 10,812.43, 14,921.16 and 5,844.43

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Solution

The fourth proportional to 10,812.43, 14,921.16 and 5,844.43 is: 8,065.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,812.43 : 14,921.16 = 5,844.43 : x
  2. Step 2: Convert to fraction form
    10,812.43/14,921.16 = 5,844.43/x
  3. Step 3: Cross multiply
    10,812.43x = 14,921.16 × 5,844.43
  4. Step 4: Simplify right side
    10,812.43x = 87,205,675.14
  5. Step 5: Solve for x
    x = 87,205,675.14/10,812.43
  6. Step 6: Final answer
    x = 8,065.32

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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.