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Finding the Fourth Proportional to 7,741, 10,682.82 and 4,948.36

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Solution

The fourth proportional to 7,741, 10,682.82 and 4,948.36 is: 6,828.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,741 : 10,682.82 = 4,948.36 : x
  2. Step 2: Convert to fraction form
    7,741/10,682.82 = 4,948.36/x
  3. Step 3: Cross multiply
    7,741x = 10,682.82 × 4,948.36
  4. Step 4: Simplify right side
    7,741x = 52,862,439.18
  5. Step 5: Solve for x
    x = 52,862,439.18/7,741
  6. Step 6: Final answer
    x = 6,828.89

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1.5x scale

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.