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Finding the Fourth Proportional to 9,375.39, 12,931.91 and 6,012.88

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Solution

The fourth proportional to 9,375.39, 12,931.91 and 6,012.88 is: 8,293.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,375.39 : 12,931.91 = 6,012.88 : x
  2. Step 2: Convert to fraction form
    9,375.39/12,931.91 = 6,012.88/x
  3. Step 3: Cross multiply
    9,375.39x = 12,931.91 × 6,012.88
  4. Step 4: Simplify right side
    9,375.39x = 77,757,958.34
  5. Step 5: Solve for x
    x = 77,757,958.34/9,375.39
  6. Step 6: Final answer
    x = 8,293.84

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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.