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Finding the Fourth Proportional to 16,763.63, 25,144.67 and 4,916.91

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Solution

The fourth proportional to 16,763.63, 25,144.67 and 4,916.91 is: 7,375.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,763.63 : 25,144.67 = 4,916.91 : x
  2. Step 2: Convert to fraction form
    16,763.63/25,144.67 = 4,916.91/x
  3. Step 3: Cross multiply
    16,763.63x = 25,144.67 × 4,916.91
  4. Step 4: Simplify right side
    16,763.63x = 123,634,054.79
  5. Step 5: Solve for x
    x = 123,634,054.79/16,763.63
  6. Step 6: Final answer
    x = 7,375.14

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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.