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Finding the Fourth Proportional to 5,294.84, 7,950.90 and 2,219

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Solution

The fourth proportional to 5,294.84, 7,950.90 and 2,219 is: 3,332.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,294.84 : 7,950.90 = 2,219 : x
  2. Step 2: Convert to fraction form
    5,294.84/7,950.90 = 2,219/x
  3. Step 3: Cross multiply
    5,294.84x = 7,950.90 × 2,219
  4. Step 4: Simplify right side
    5,294.84x = 17,643,047.10
  5. Step 5: Solve for x
    x = 17,643,047.10/5,294.84
  6. Step 6: Final answer
    x = 3,332.12

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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.