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Finding the Fourth Proportional to 2,898.99, 4,347.98 and 1,338.86

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Solution

The fourth proportional to 2,898.99, 4,347.98 and 1,338.86 is: 2,008.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,898.99 : 4,347.98 = 1,338.86 : x
  2. Step 2: Convert to fraction form
    2,898.99/4,347.98 = 1,338.86/x
  3. Step 3: Cross multiply
    2,898.99x = 4,347.98 × 1,338.86
  4. Step 4: Simplify right side
    2,898.99x = 5,821,318.94
  5. Step 5: Solve for x
    x = 5,821,318.94/2,898.99
  6. Step 6: Final answer
    x = 2,008.05

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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.