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Finding the Fourth Proportional to 2,903.69, 4,008.14 and 1,724.77

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Solution

The fourth proportional to 2,903.69, 4,008.14 and 1,724.77 is: 2,380.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,903.69 : 4,008.14 = 1,724.77 : x
  2. Step 2: Convert to fraction form
    2,903.69/4,008.14 = 1,724.77/x
  3. Step 3: Cross multiply
    2,903.69x = 4,008.14 × 1,724.77
  4. Step 4: Simplify right side
    2,903.69x = 6,913,122.48
  5. Step 5: Solve for x
    x = 6,913,122.48/2,903.69
  6. Step 6: Final answer
    x = 2,380.80

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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.