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Finding the Fourth Proportional to 16,667.84, 24,988.80 and 8,878.88

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Solution

The fourth proportional to 16,667.84, 24,988.80 and 8,878.88 is: 13,311.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,667.84 : 24,988.80 = 8,878.88 : x
  2. Step 2: Convert to fraction form
    16,667.84/24,988.80 = 8,878.88/x
  3. Step 3: Cross multiply
    16,667.84x = 24,988.80 × 8,878.88
  4. Step 4: Simplify right side
    16,667.84x = 221,872,556.54
  5. Step 5: Solve for x
    x = 221,872,556.54/16,667.84
  6. Step 6: Final answer
    x = 13,311.42

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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.