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Finding the Fourth Proportional to 7,808.68, 11,713.38 and 4,343.32

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Solution

The fourth proportional to 7,808.68, 11,713.38 and 4,343.32 is: 6,515.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,808.68 : 11,713.38 = 4,343.32 : x
  2. Step 2: Convert to fraction form
    7,808.68/11,713.38 = 4,343.32/x
  3. Step 3: Cross multiply
    7,808.68x = 11,713.38 × 4,343.32
  4. Step 4: Simplify right side
    7,808.68x = 50,874,957.62
  5. Step 5: Solve for x
    x = 50,874,957.62/7,808.68
  6. Step 6: Final answer
    x = 6,515.18

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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.