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Finding the Fourth Proportional to 8,766.90, 13,145.55 and 3,566.90

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Solution

The fourth proportional to 8,766.90, 13,145.55 and 3,566.90 is: 5,348.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,766.90 : 13,145.55 = 3,566.90 : x
  2. Step 2: Convert to fraction form
    8,766.90/13,145.55 = 3,566.90/x
  3. Step 3: Cross multiply
    8,766.90x = 13,145.55 × 3,566.90
  4. Step 4: Simplify right side
    8,766.90x = 46,888,862.30
  5. Step 5: Solve for x
    x = 46,888,862.30/8,766.90
  6. Step 6: Final answer
    x = 5,348.40

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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.