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Finding the Fourth Proportional to 57,714.20, 86,571.30 and 35,455.40

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Solution

The fourth proportional to 57,714.20, 86,571.30 and 35,455.40 is: 53,183.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,714.20 : 86,571.30 = 35,455.40 : x
  2. Step 2: Convert to fraction form
    57,714.20/86,571.30 = 35,455.40/x
  3. Step 3: Cross multiply
    57,714.20x = 86,571.30 × 35,455.40
  4. Step 4: Simplify right side
    57,714.20x = 3,069,420,070.02
  5. Step 5: Solve for x
    x = 3,069,420,070.02/57,714.20
  6. Step 6: Final answer
    x = 53,183.10

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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.