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Finding the Fourth Proportional to 3,607.99, 4,979.28 and 2,014.95

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Solution

The fourth proportional to 3,607.99, 4,979.28 and 2,014.95 is: 2,780.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,607.99 : 4,979.28 = 2,014.95 : x
  2. Step 2: Convert to fraction form
    3,607.99/4,979.28 = 2,014.95/x
  3. Step 3: Cross multiply
    3,607.99x = 4,979.28 × 2,014.95
  4. Step 4: Simplify right side
    3,607.99x = 10,032,990.16
  5. Step 5: Solve for x
    x = 10,032,990.16/3,607.99
  6. Step 6: Final answer
    x = 2,780.77

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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.