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Finding the Fourth Proportional to 3,670.51, 5,508.50 and 1,479.26

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Solution

The fourth proportional to 3,670.51, 5,508.50 and 1,479.26 is: 2,219.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,670.51 : 5,508.50 = 1,479.26 : x
  2. Step 2: Convert to fraction form
    3,670.51/5,508.50 = 1,479.26/x
  3. Step 3: Cross multiply
    3,670.51x = 5,508.50 × 1,479.26
  4. Step 4: Simplify right side
    3,670.51x = 8,148,503.71
  5. Step 5: Solve for x
    x = 8,148,503.71/3,670.51
  6. Step 6: Final answer
    x = 2,219.99

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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.