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Finding the Fourth Proportional to 9,339.25, 13,974.27 and 7,484.74

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Solution

The fourth proportional to 9,339.25, 13,974.27 and 7,484.74 is: 11,199.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,339.25 : 13,974.27 = 7,484.74 : x
  2. Step 2: Convert to fraction form
    9,339.25/13,974.27 = 7,484.74/x
  3. Step 3: Cross multiply
    9,339.25x = 13,974.27 × 7,484.74
  4. Step 4: Simplify right side
    9,339.25x = 104,593,777.64
  5. Step 5: Solve for x
    x = 104,593,777.64/9,339.25
  6. Step 6: Final answer
    x = 11,199.38

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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.