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Finding the Fourth Proportional to 5,673.12, 8,509.68 and 3,363.36

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Solution

The fourth proportional to 5,673.12, 8,509.68 and 3,363.36 is: 5,045.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,673.12 : 8,509.68 = 3,363.36 : x
  2. Step 2: Convert to fraction form
    5,673.12/8,509.68 = 3,363.36/x
  3. Step 3: Cross multiply
    5,673.12x = 8,509.68 × 3,363.36
  4. Step 4: Simplify right side
    5,673.12x = 28,621,117.32
  5. Step 5: Solve for x
    x = 28,621,117.32/5,673.12
  6. Step 6: Final answer
    x = 5,045.04

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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.