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Finding the Fourth Proportional to 4,322.05, 6,484.11 and 1,400.35

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Solution

The fourth proportional to 4,322.05, 6,484.11 and 1,400.35 is: 2,100.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,322.05 : 6,484.11 = 1,400.35 : x
  2. Step 2: Convert to fraction form
    4,322.05/6,484.11 = 1,400.35/x
  3. Step 3: Cross multiply
    4,322.05x = 6,484.11 × 1,400.35
  4. Step 4: Simplify right side
    4,322.05x = 9,080,016.44
  5. Step 5: Solve for x
    x = 9,080,016.44/4,322.05
  6. Step 6: Final answer
    x = 2,100.86

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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.