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Finding the Fourth Proportional to 11,800.65, 16,284.95 and 6,764.99

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Solution

The fourth proportional to 11,800.65, 16,284.95 and 6,764.99 is: 9,335.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,800.65 : 16,284.95 = 6,764.99 : x
  2. Step 2: Convert to fraction form
    11,800.65/16,284.95 = 6,764.99/x
  3. Step 3: Cross multiply
    11,800.65x = 16,284.95 × 6,764.99
  4. Step 4: Simplify right side
    11,800.65x = 110,167,434.02
  5. Step 5: Solve for x
    x = 110,167,434.02/11,800.65
  6. Step 6: Final answer
    x = 9,335.71

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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.