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Finding the Fourth Proportional to 8,832.80, 13,255.68 and 4,453.40

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Solution

The fourth proportional to 8,832.80, 13,255.68 and 4,453.40 is: 6,683.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,832.80 : 13,255.68 = 4,453.40 : x
  2. Step 2: Convert to fraction form
    8,832.80/13,255.68 = 4,453.40/x
  3. Step 3: Cross multiply
    8,832.80x = 13,255.68 × 4,453.40
  4. Step 4: Simplify right side
    8,832.80x = 59,032,845.31
  5. Step 5: Solve for x
    x = 59,032,845.31/8,832.80
  6. Step 6: Final answer
    x = 6,683.37

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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.