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Finding the Fourth Proportional to 62,817.80, 94,226.70 and 21,264.20

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Solution

The fourth proportional to 62,817.80, 94,226.70 and 21,264.20 is: 31,896.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,817.80 : 94,226.70 = 21,264.20 : x
  2. Step 2: Convert to fraction form
    62,817.80/94,226.70 = 21,264.20/x
  3. Step 3: Cross multiply
    62,817.80x = 94,226.70 × 21,264.20
  4. Step 4: Simplify right side
    62,817.80x = 2,003,655,394.14
  5. Step 5: Solve for x
    x = 2,003,655,394.14/62,817.80
  6. Step 6: Final answer
    x = 31,896.30

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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.