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Finding the Fourth Proportional to 8,515.52, 12,773.12 and 4,644.56

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Solution

The fourth proportional to 8,515.52, 12,773.12 and 4,644.56 is: 6,966.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,515.52 : 12,773.12 = 4,644.56 : x
  2. Step 2: Convert to fraction form
    8,515.52/12,773.12 = 4,644.56/x
  3. Step 3: Cross multiply
    8,515.52x = 12,773.12 × 4,644.56
  4. Step 4: Simplify right side
    8,515.52x = 59,325,522.23
  5. Step 5: Solve for x
    x = 59,325,522.23/8,515.52
  6. Step 6: Final answer
    x = 6,966.75

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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.