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Finding the Fourth Proportional to 3,347.95, 5,021.90 and 1,007.95

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Solution

The fourth proportional to 3,347.95, 5,021.90 and 1,007.95 is: 1,511.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,347.95 : 5,021.90 = 1,007.95 : x
  2. Step 2: Convert to fraction form
    3,347.95/5,021.90 = 1,007.95/x
  3. Step 3: Cross multiply
    3,347.95x = 5,021.90 × 1,007.95
  4. Step 4: Simplify right side
    3,347.95x = 5,061,809.03
  5. Step 5: Solve for x
    x = 5,061,809.03/3,347.95
  6. Step 6: Final answer
    x = 1,511.91

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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.