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Finding the Fourth Proportional to 7,063.31, 9,747.36 and 3,876.63

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Solution

The fourth proportional to 7,063.31, 9,747.36 and 3,876.63 is: 5,349.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,063.31 : 9,747.36 = 3,876.63 : x
  2. Step 2: Convert to fraction form
    7,063.31/9,747.36 = 3,876.63/x
  3. Step 3: Cross multiply
    7,063.31x = 9,747.36 × 3,876.63
  4. Step 4: Simplify right side
    7,063.31x = 37,786,893.52
  5. Step 5: Solve for x
    x = 37,786,893.52/7,063.31
  6. Step 6: Final answer
    x = 5,349.74

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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.