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Finding the Fourth Proportional to 8,642.99, 11,924.07 and 5,056.80

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Solution

The fourth proportional to 8,642.99, 11,924.07 and 5,056.80 is: 6,976.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,642.99 : 11,924.07 = 5,056.80 : x
  2. Step 2: Convert to fraction form
    8,642.99/11,924.07 = 5,056.80/x
  3. Step 3: Cross multiply
    8,642.99x = 11,924.07 × 5,056.80
  4. Step 4: Simplify right side
    8,642.99x = 60,297,637.18
  5. Step 5: Solve for x
    x = 60,297,637.18/8,642.99
  6. Step 6: Final answer
    x = 6,976.48

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Similar ratio
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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.