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Finding the Fourth Proportional to 4,994, 7,490.97 and 1,296.22

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Solution

The fourth proportional to 4,994, 7,490.97 and 1,296.22 is: 1,944.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,994 : 7,490.97 = 1,296.22 : x
  2. Step 2: Convert to fraction form
    4,994/7,490.97 = 1,296.22/x
  3. Step 3: Cross multiply
    4,994x = 7,490.97 × 1,296.22
  4. Step 4: Simplify right side
    4,994x = 9,709,945.13
  5. Step 5: Solve for x
    x = 9,709,945.13/4,994
  6. Step 6: Final answer
    x = 1,944.32

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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.