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Finding the Fourth Proportional to 7,867.04, 11,800.59 and 3,187.14

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Solution

The fourth proportional to 7,867.04, 11,800.59 and 3,187.14 is: 4,780.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,867.04 : 11,800.59 = 3,187.14 : x
  2. Step 2: Convert to fraction form
    7,867.04/11,800.59 = 3,187.14/x
  3. Step 3: Cross multiply
    7,867.04x = 11,800.59 × 3,187.14
  4. Step 4: Simplify right side
    7,867.04x = 37,610,136.99
  5. Step 5: Solve for x
    x = 37,610,136.99/7,867.04
  6. Step 6: Final answer
    x = 4,780.72

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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.