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Finding the Fourth Proportional to 9,377.68, 13,992.81 and 9,060.64

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Solution

The fourth proportional to 9,377.68, 13,992.81 and 9,060.64 is: 13,519.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,377.68 : 13,992.81 = 9,060.64 : x
  2. Step 2: Convert to fraction form
    9,377.68/13,992.81 = 9,060.64/x
  3. Step 3: Cross multiply
    9,377.68x = 13,992.81 × 9,060.64
  4. Step 4: Simplify right side
    9,377.68x = 126,783,814.00
  5. Step 5: Solve for x
    x = 126,783,814.00/9,377.68
  6. Step 6: Final answer
    x = 13,519.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.