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Finding the Fourth Proportional to 57,526.16, 86,230.80 and 43,646

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Solution

The fourth proportional to 57,526.16, 86,230.80 and 43,646 is: 65,424.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,526.16 : 86,230.80 = 43,646 : x
  2. Step 2: Convert to fraction form
    57,526.16/86,230.80 = 43,646/x
  3. Step 3: Cross multiply
    57,526.16x = 86,230.80 × 43,646
  4. Step 4: Simplify right side
    57,526.16x = 3,763,629,496.80
  5. Step 5: Solve for x
    x = 3,763,629,496.80/57,526.16
  6. Step 6: Final answer
    x = 65,424.66

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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.