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Finding the Fourth Proportional to 8,741.79, 13,105.80 and 4,356.99

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Solution

The fourth proportional to 8,741.79, 13,105.80 and 4,356.99 is: 6,532.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,741.79 : 13,105.80 = 4,356.99 : x
  2. Step 2: Convert to fraction form
    8,741.79/13,105.80 = 4,356.99/x
  3. Step 3: Cross multiply
    8,741.79x = 13,105.80 × 4,356.99
  4. Step 4: Simplify right side
    8,741.79x = 57,101,839.54
  5. Step 5: Solve for x
    x = 57,101,839.54/8,741.79
  6. Step 6: Final answer
    x = 6,532.05

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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.