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Finding the Fourth Proportional to 7,026.64, 9,696.76 and 3,839.98

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Solution

The fourth proportional to 7,026.64, 9,696.76 and 3,839.98 is: 5,299.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,026.64 : 9,696.76 = 3,839.98 : x
  2. Step 2: Convert to fraction form
    7,026.64/9,696.76 = 3,839.98/x
  3. Step 3: Cross multiply
    7,026.64x = 9,696.76 × 3,839.98
  4. Step 4: Simplify right side
    7,026.64x = 37,235,364.46
  5. Step 5: Solve for x
    x = 37,235,364.46/7,026.64
  6. Step 6: Final answer
    x = 5,299.17

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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.