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Finding the Fourth Proportional to 16,651.66, 24,962.78 and 8,756.58

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Solution

The fourth proportional to 16,651.66, 24,962.78 and 8,756.58 is: 13,127.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,651.66 : 24,962.78 = 8,756.58 : x
  2. Step 2: Convert to fraction form
    16,651.66/24,962.78 = 8,756.58/x
  3. Step 3: Cross multiply
    16,651.66x = 24,962.78 × 8,756.58
  4. Step 4: Simplify right side
    16,651.66x = 218,588,580.09
  5. Step 5: Solve for x
    x = 218,588,580.09/16,651.66
  6. Step 6: Final answer
    x = 13,127.13

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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.