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Finding the Fourth Proportional to 8,712.41, 13,069.53 and 5,769.99

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Solution

The fourth proportional to 8,712.41, 13,069.53 and 5,769.99 is: 8,655.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,712.41 : 13,069.53 = 5,769.99 : x
  2. Step 2: Convert to fraction form
    8,712.41/13,069.53 = 5,769.99/x
  3. Step 3: Cross multiply
    8,712.41x = 13,069.53 × 5,769.99
  4. Step 4: Simplify right side
    8,712.41x = 75,411,057.40
  5. Step 5: Solve for x
    x = 75,411,057.40/8,712.41
  6. Step 6: Final answer
    x = 8,655.60

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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.