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Finding the Fourth Proportional to 3,347.79, 5,021.93 and 1,007.61

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Solution

The fourth proportional to 3,347.79, 5,021.93 and 1,007.61 is: 1,511.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,347.79 : 5,021.93 = 1,007.61 : x
  2. Step 2: Convert to fraction form
    3,347.79/5,021.93 = 1,007.61/x
  3. Step 3: Cross multiply
    3,347.79x = 5,021.93 × 1,007.61
  4. Step 4: Simplify right side
    3,347.79x = 5,060,141.85
  5. Step 5: Solve for x
    x = 5,060,141.85/3,347.79
  6. Step 6: Final answer
    x = 1,511.49

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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.