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Finding the Fourth Proportional to 11,807.35, 17,710.99 and 4,412.39

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Solution

The fourth proportional to 11,807.35, 17,710.99 and 4,412.39 is: 6,618.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,807.35 : 17,710.99 = 4,412.39 : x
  2. Step 2: Convert to fraction form
    11,807.35/17,710.99 = 4,412.39/x
  3. Step 3: Cross multiply
    11,807.35x = 17,710.99 × 4,412.39
  4. Step 4: Simplify right side
    11,807.35x = 78,147,795.17
  5. Step 5: Solve for x
    x = 78,147,795.17/11,807.35
  6. Step 6: Final answer
    x = 6,618.57

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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.