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Finding the Fourth Proportional to 9,092.80, 13,638.48 and 3,248.80

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Solution

The fourth proportional to 9,092.80, 13,638.48 and 3,248.80 is: 4,872.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,092.80 : 13,638.48 = 3,248.80 : x
  2. Step 2: Convert to fraction form
    9,092.80/13,638.48 = 3,248.80/x
  3. Step 3: Cross multiply
    9,092.80x = 13,638.48 × 3,248.80
  4. Step 4: Simplify right side
    9,092.80x = 44,308,693.82
  5. Step 5: Solve for x
    x = 44,308,693.82/9,092.80
  6. Step 6: Final answer
    x = 4,872.94

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1.5x scale

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.