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Finding the Fourth Proportional to 34,808.90, 52,213.35 and 8,513.90

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Solution

The fourth proportional to 34,808.90, 52,213.35 and 8,513.90 is: 12,770.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,808.90 : 52,213.35 = 8,513.90 : x
  2. Step 2: Convert to fraction form
    34,808.90/52,213.35 = 8,513.90/x
  3. Step 3: Cross multiply
    34,808.90x = 52,213.35 × 8,513.90
  4. Step 4: Simplify right side
    34,808.90x = 444,539,240.57
  5. Step 5: Solve for x
    x = 444,539,240.57/34,808.90
  6. Step 6: Final answer
    x = 12,770.85

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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.