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Finding the Fourth Proportional to 5,752.95, 8,611.20 and 4,112.70

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Solution

The fourth proportional to 5,752.95, 8,611.20 and 4,112.70 is: 6,156.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,752.95 : 8,611.20 = 4,112.70 : x
  2. Step 2: Convert to fraction form
    5,752.95/8,611.20 = 4,112.70/x
  3. Step 3: Cross multiply
    5,752.95x = 8,611.20 × 4,112.70
  4. Step 4: Simplify right side
    5,752.95x = 35,415,282.24
  5. Step 5: Solve for x
    x = 35,415,282.24/5,752.95
  6. Step 6: Final answer
    x = 6,156.02

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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.