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Finding the Fourth Proportional to 57,365.70, 86,035.56 and 21,814.30

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Solution

The fourth proportional to 57,365.70, 86,035.56 and 21,814.30 is: 32,716.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,365.70 : 86,035.56 = 21,814.30 : x
  2. Step 2: Convert to fraction form
    57,365.70/86,035.56 = 21,814.30/x
  3. Step 3: Cross multiply
    57,365.70x = 86,035.56 × 21,814.30
  4. Step 4: Simplify right side
    57,365.70x = 1,876,805,516.51
  5. Step 5: Solve for x
    x = 1,876,805,516.51/57,365.70
  6. Step 6: Final answer
    x = 32,716.51

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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.