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Finding the Fourth Proportional to 5,607.68, 8,406.52 and 2,318.68

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Solution

The fourth proportional to 5,607.68, 8,406.52 and 2,318.68 is: 3,475.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,607.68 : 8,406.52 = 2,318.68 : x
  2. Step 2: Convert to fraction form
    5,607.68/8,406.52 = 2,318.68/x
  3. Step 3: Cross multiply
    5,607.68x = 8,406.52 × 2,318.68
  4. Step 4: Simplify right side
    5,607.68x = 19,492,029.79
  5. Step 5: Solve for x
    x = 19,492,029.79/5,607.68
  6. Step 6: Final answer
    x = 3,475.95

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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.