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Finding the Fourth Proportional to 8,539.16, 12,808.74 and 2,696.22

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Solution

The fourth proportional to 8,539.16, 12,808.74 and 2,696.22 is: 4,044.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,539.16 : 12,808.74 = 2,696.22 : x
  2. Step 2: Convert to fraction form
    8,539.16/12,808.74 = 2,696.22/x
  3. Step 3: Cross multiply
    8,539.16x = 12,808.74 × 2,696.22
  4. Step 4: Simplify right side
    8,539.16x = 34,535,180.96
  5. Step 5: Solve for x
    x = 34,535,180.96/8,539.16
  6. Step 6: Final answer
    x = 4,044.33

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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.