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Finding the Fourth Proportional to 9,859.72, 14,789.60 and 2,934.22

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Solution

The fourth proportional to 9,859.72, 14,789.60 and 2,934.22 is: 4,401.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,859.72 : 14,789.60 = 2,934.22 : x
  2. Step 2: Convert to fraction form
    9,859.72/14,789.60 = 2,934.22/x
  3. Step 3: Cross multiply
    9,859.72x = 14,789.60 × 2,934.22
  4. Step 4: Simplify right side
    9,859.72x = 43,395,925.44
  5. Step 5: Solve for x
    x = 43,395,925.44/9,859.72
  6. Step 6: Final answer
    x = 4,401.33

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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.