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Finding the Fourth Proportional to 8,608.61, 12,913.04 and 3,343.92

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Solution

The fourth proportional to 8,608.61, 12,913.04 and 3,343.92 is: 5,015.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,608.61 : 12,913.04 = 3,343.92 : x
  2. Step 2: Convert to fraction form
    8,608.61/12,913.04 = 3,343.92/x
  3. Step 3: Cross multiply
    8,608.61x = 12,913.04 × 3,343.92
  4. Step 4: Simplify right side
    8,608.61x = 43,180,156.00
  5. Step 5: Solve for x
    x = 43,180,156.00/8,608.61
  6. Step 6: Final answer
    x = 5,015.93

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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.