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Finding the Fourth Proportional to 16,443.78, 24,669.60 and 4,756.68

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Solution

The fourth proportional to 16,443.78, 24,669.60 and 4,756.68 is: 7,136.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,443.78 : 24,669.60 = 4,756.68 : x
  2. Step 2: Convert to fraction form
    16,443.78/24,669.60 = 4,756.68/x
  3. Step 3: Cross multiply
    16,443.78x = 24,669.60 × 4,756.68
  4. Step 4: Simplify right side
    16,443.78x = 117,345,392.93
  5. Step 5: Solve for x
    x = 117,345,392.93/16,443.78
  6. Step 6: Final answer
    x = 7,136.16

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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.