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Finding the Fourth Proportional to 5,643.08, 7,786.90 and 3,373.96

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Solution

The fourth proportional to 5,643.08, 7,786.90 and 3,373.96 is: 4,655.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,643.08 : 7,786.90 = 3,373.96 : x
  2. Step 2: Convert to fraction form
    5,643.08/7,786.90 = 3,373.96/x
  3. Step 3: Cross multiply
    5,643.08x = 7,786.90 × 3,373.96
  4. Step 4: Simplify right side
    5,643.08x = 26,272,689.12
  5. Step 5: Solve for x
    x = 26,272,689.12/5,643.08
  6. Step 6: Final answer
    x = 4,655.74

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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.