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Finding the Fourth Proportional to 11,402.88, 15,735.99 and 6,925.44

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Solution

The fourth proportional to 11,402.88, 15,735.99 and 6,925.44 is: 9,557.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,402.88 : 15,735.99 = 6,925.44 : x
  2. Step 2: Convert to fraction form
    11,402.88/15,735.99 = 6,925.44/x
  3. Step 3: Cross multiply
    11,402.88x = 15,735.99 × 6,925.44
  4. Step 4: Simplify right side
    11,402.88x = 108,978,654.59
  5. Step 5: Solve for x
    x = 108,978,654.59/11,402.88
  6. Step 6: Final answer
    x = 9,557.12

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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.