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Finding the Fourth Proportional to 7,653.15, 11,479.77 and 2,722.98

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Solution

The fourth proportional to 7,653.15, 11,479.77 and 2,722.98 is: 4,084.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,653.15 : 11,479.77 = 2,722.98 : x
  2. Step 2: Convert to fraction form
    7,653.15/11,479.77 = 2,722.98/x
  3. Step 3: Cross multiply
    7,653.15x = 11,479.77 × 2,722.98
  4. Step 4: Simplify right side
    7,653.15x = 31,259,184.11
  5. Step 5: Solve for x
    x = 31,259,184.11/7,653.15
  6. Step 6: Final answer
    x = 4,084.49

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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.