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Finding the Fourth Proportional to 15,066.88, 20,793 and 9,404.98

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Solution

The fourth proportional to 15,066.88, 20,793 and 9,404.98 is: 12,979.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,066.88 : 20,793 = 9,404.98 : x
  2. Step 2: Convert to fraction form
    15,066.88/20,793 = 9,404.98/x
  3. Step 3: Cross multiply
    15,066.88x = 20,793 × 9,404.98
  4. Step 4: Simplify right side
    15,066.88x = 195,557,749.14
  5. Step 5: Solve for x
    x = 195,557,749.14/15,066.88
  6. Step 6: Final answer
    x = 12,979.31

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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.