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Finding the Fourth Proportional to 16,916.00, 25,382.88 and 6,928.16

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Solution

The fourth proportional to 16,916.00, 25,382.88 and 6,928.16 is: 10,395.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,916.00 : 25,382.88 = 6,928.16 : x
  2. Step 2: Convert to fraction form
    16,916.00/25,382.88 = 6,928.16/x
  3. Step 3: Cross multiply
    16,916.00x = 25,382.88 × 6,928.16
  4. Step 4: Simplify right side
    16,916.00x = 175,856,526.99
  5. Step 5: Solve for x
    x = 175,856,526.99/16,916.00
  6. Step 6: Final answer
    x = 10,395.87

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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.