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Finding the Fourth Proportional to 10,751.60, 16,126.97 and 4,908.13

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Solution

The fourth proportional to 10,751.60, 16,126.97 and 4,908.13 is: 7,361.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,751.60 : 16,126.97 = 4,908.13 : x
  2. Step 2: Convert to fraction form
    10,751.60/16,126.97 = 4,908.13/x
  3. Step 3: Cross multiply
    10,751.60x = 16,126.97 × 4,908.13
  4. Step 4: Simplify right side
    10,751.60x = 79,153,200.41
  5. Step 5: Solve for x
    x = 79,153,200.41/10,751.60
  6. Step 6: Final answer
    x = 7,361.99

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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.