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Finding the Fourth Proportional to 57,723.40, 86,585.10 and 35,561.80

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Solution

The fourth proportional to 57,723.40, 86,585.10 and 35,561.80 is: 53,342.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,723.40 : 86,585.10 = 35,561.80 : x
  2. Step 2: Convert to fraction form
    57,723.40/86,585.10 = 35,561.80/x
  3. Step 3: Cross multiply
    57,723.40x = 86,585.10 × 35,561.80
  4. Step 4: Simplify right side
    57,723.40x = 3,079,122,009.18
  5. Step 5: Solve for x
    x = 3,079,122,009.18/57,723.40
  6. Step 6: Final answer
    x = 53,342.70

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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.