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Finding the Fourth Proportional to 62,821.40, 94,232.10 and 21,268.40

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Solution

The fourth proportional to 62,821.40, 94,232.10 and 21,268.40 is: 31,902.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,821.40 : 94,232.10 = 21,268.40 : x
  2. Step 2: Convert to fraction form
    62,821.40/94,232.10 = 21,268.40/x
  3. Step 3: Cross multiply
    62,821.40x = 94,232.10 × 21,268.40
  4. Step 4: Simplify right side
    62,821.40x = 2,004,165,995.64
  5. Step 5: Solve for x
    x = 2,004,165,995.64/62,821.40
  6. Step 6: Final answer
    x = 31,902.60

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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.