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Finding the Fourth Proportional to 8,758.35, 12,086.49 and 4,779.44

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Solution

The fourth proportional to 8,758.35, 12,086.49 and 4,779.44 is: 6,595.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,758.35 : 12,086.49 = 4,779.44 : x
  2. Step 2: Convert to fraction form
    8,758.35/12,086.49 = 4,779.44/x
  3. Step 3: Cross multiply
    8,758.35x = 12,086.49 × 4,779.44
  4. Step 4: Simplify right side
    8,758.35x = 57,766,593.33
  5. Step 5: Solve for x
    x = 57,766,593.33/8,758.35
  6. Step 6: Final answer
    x = 6,595.60

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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.