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Finding the Fourth Proportional to 8,911.61, 13,366.61 and 2,673

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Solution

The fourth proportional to 8,911.61, 13,366.61 and 2,673 is: 4,009.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,911.61 : 13,366.61 = 2,673 : x
  2. Step 2: Convert to fraction form
    8,911.61/13,366.61 = 2,673/x
  3. Step 3: Cross multiply
    8,911.61x = 13,366.61 × 2,673
  4. Step 4: Simplify right side
    8,911.61x = 35,728,935.17
  5. Step 5: Solve for x
    x = 35,728,935.17/8,911.61
  6. Step 6: Final answer
    x = 4,009.26

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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.