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Finding the Fourth Proportional to 3,708.99, 5,575.23 and 2,068.74

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Solution

The fourth proportional to 3,708.99, 5,575.23 and 2,068.74 is: 3,109.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,708.99 : 5,575.23 = 2,068.74 : x
  2. Step 2: Convert to fraction form
    3,708.99/5,575.23 = 2,068.74/x
  3. Step 3: Cross multiply
    3,708.99x = 5,575.23 × 2,068.74
  4. Step 4: Simplify right side
    3,708.99x = 11,533,701.31
  5. Step 5: Solve for x
    x = 11,533,701.31/3,708.99
  6. Step 6: Final answer
    x = 3,109.66

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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.