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Finding the Fourth Proportional to 7,867.94, 11,802.99 and 2,321.69

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Solution

The fourth proportional to 7,867.94, 11,802.99 and 2,321.69 is: 3,482.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,867.94 : 11,802.99 = 2,321.69 : x
  2. Step 2: Convert to fraction form
    7,867.94/11,802.99 = 2,321.69/x
  3. Step 3: Cross multiply
    7,867.94x = 11,802.99 × 2,321.69
  4. Step 4: Simplify right side
    7,867.94x = 27,402,883.85
  5. Step 5: Solve for x
    x = 27,402,883.85/7,867.94
  6. Step 6: Final answer
    x = 3,482.85

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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.