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Finding the Fourth Proportional to 5,047.98, 6,966.14 and 2,809.85

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Solution

The fourth proportional to 5,047.98, 6,966.14 and 2,809.85 is: 3,877.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,047.98 : 6,966.14 = 2,809.85 : x
  2. Step 2: Convert to fraction form
    5,047.98/6,966.14 = 2,809.85/x
  3. Step 3: Cross multiply
    5,047.98x = 6,966.14 × 2,809.85
  4. Step 4: Simplify right side
    5,047.98x = 19,573,808.48
  5. Step 5: Solve for x
    x = 19,573,808.48/5,047.98
  6. Step 6: Final answer
    x = 3,877.55

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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.