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Finding the Fourth Proportional to 8,494.95, 11,722.72 and 4,718.36

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Solution

The fourth proportional to 8,494.95, 11,722.72 and 4,718.36 is: 6,511.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,494.95 : 11,722.72 = 4,718.36 : x
  2. Step 2: Convert to fraction form
    8,494.95/11,722.72 = 4,718.36/x
  3. Step 3: Cross multiply
    8,494.95x = 11,722.72 × 4,718.36
  4. Step 4: Simplify right side
    8,494.95x = 55,311,993.26
  5. Step 5: Solve for x
    x = 55,311,993.26/8,494.95
  6. Step 6: Final answer
    x = 6,511.16

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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.