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Finding the Fourth Proportional to 8,725.52, 13,089.20 and 2,883.20

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Solution

The fourth proportional to 8,725.52, 13,089.20 and 2,883.20 is: 4,325.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,725.52 : 13,089.20 = 2,883.20 : x
  2. Step 2: Convert to fraction form
    8,725.52/13,089.20 = 2,883.20/x
  3. Step 3: Cross multiply
    8,725.52x = 13,089.20 × 2,883.20
  4. Step 4: Simplify right side
    8,725.52x = 37,738,701.58
  5. Step 5: Solve for x
    x = 37,738,701.58/8,725.52
  6. Step 6: Final answer
    x = 4,325.09

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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.