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Finding the Fourth Proportional to 8,866.81, 12,222.93 and 5,877.42

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Solution

The fourth proportional to 8,866.81, 12,222.93 and 5,877.42 is: 8,102.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,866.81 : 12,222.93 = 5,877.42 : x
  2. Step 2: Convert to fraction form
    8,866.81/12,222.93 = 5,877.42/x
  3. Step 3: Cross multiply
    8,866.81x = 12,222.93 × 5,877.42
  4. Step 4: Simplify right side
    8,866.81x = 71,839,293.24
  5. Step 5: Solve for x
    x = 71,839,293.24/8,866.81
  6. Step 6: Final answer
    x = 8,102.04

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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.