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Finding the Fourth Proportional to 4,927.98, 6,800.76 and 2,690.00

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Solution

The fourth proportional to 4,927.98, 6,800.76 and 2,690.00 is: 3,712.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,927.98 : 6,800.76 = 2,690.00 : x
  2. Step 2: Convert to fraction form
    4,927.98/6,800.76 = 2,690.00/x
  3. Step 3: Cross multiply
    4,927.98x = 6,800.76 × 2,690.00
  4. Step 4: Simplify right side
    4,927.98x = 18,294,061.40
  5. Step 5: Solve for x
    x = 18,294,061.40/4,927.98
  6. Step 6: Final answer
    x = 3,712.28

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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.