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Finding the Fourth Proportional to 57,080.97, 85,621.46 and 17,637.21

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Solution

The fourth proportional to 57,080.97, 85,621.46 and 17,637.21 is: 26,455.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,080.97 : 85,621.46 = 17,637.21 : x
  2. Step 2: Convert to fraction form
    57,080.97/85,621.46 = 17,637.21/x
  3. Step 3: Cross multiply
    57,080.97x = 85,621.46 × 17,637.21
  4. Step 4: Simplify right side
    57,080.97x = 1,510,123,582.34
  5. Step 5: Solve for x
    x = 1,510,123,582.34/57,080.97
  6. Step 6: Final answer
    x = 26,455.82

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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.