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Finding the Fourth Proportional to 8,513.84, 12,770.87 and 2,967.30

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Solution

The fourth proportional to 8,513.84, 12,770.87 and 2,967.30 is: 4,450.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,513.84 : 12,770.87 = 2,967.30 : x
  2. Step 2: Convert to fraction form
    8,513.84/12,770.87 = 2,967.30/x
  3. Step 3: Cross multiply
    8,513.84x = 12,770.87 × 2,967.30
  4. Step 4: Simplify right side
    8,513.84x = 37,894,987.71
  5. Step 5: Solve for x
    x = 37,894,987.71/8,513.84
  6. Step 6: Final answer
    x = 4,450.99

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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.