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Finding the Fourth Proportional to 8,976.88, 13,465.48 and 3,432.80

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Solution

The fourth proportional to 8,976.88, 13,465.48 and 3,432.80 is: 5,149.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,976.88 : 13,465.48 = 3,432.80 : x
  2. Step 2: Convert to fraction form
    8,976.88/13,465.48 = 3,432.80/x
  3. Step 3: Cross multiply
    8,976.88x = 13,465.48 × 3,432.80
  4. Step 4: Simplify right side
    8,976.88x = 46,224,299.74
  5. Step 5: Solve for x
    x = 46,224,299.74/8,976.88
  6. Step 6: Final answer
    x = 5,149.26

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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.