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Finding the Fourth Proportional to 12,017.17, 16,583.61 and 6,639.94

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Solution

The fourth proportional to 12,017.17, 16,583.61 and 6,639.94 is: 9,163.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,017.17 : 16,583.61 = 6,639.94 : x
  2. Step 2: Convert to fraction form
    12,017.17/16,583.61 = 6,639.94/x
  3. Step 3: Cross multiply
    12,017.17x = 16,583.61 × 6,639.94
  4. Step 4: Simplify right side
    12,017.17x = 110,114,175.38
  5. Step 5: Solve for x
    x = 110,114,175.38/12,017.17
  6. Step 6: Final answer
    x = 9,163.07

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1.5x scale

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.