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Finding the Fourth Proportional to 5,260.92, 7,260 and 2,903

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Solution

The fourth proportional to 5,260.92, 7,260 and 2,903 is: 4,006.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,260.92 : 7,260 = 2,903 : x
  2. Step 2: Convert to fraction form
    5,260.92/7,260 = 2,903/x
  3. Step 3: Cross multiply
    5,260.92x = 7,260 × 2,903
  4. Step 4: Simplify right side
    5,260.92x = 21,075,780
  5. Step 5: Solve for x
    x = 21,075,780/5,260.92
  6. Step 6: Final answer
    x = 4,006.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.