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Finding the Fourth Proportional to 62,082, 85,760.28 and 55,365.48

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Solution

The fourth proportional to 62,082, 85,760.28 and 55,365.48 is: 76,482.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,082 : 85,760.28 = 55,365.48 : x
  2. Step 2: Convert to fraction form
    62,082/85,760.28 = 55,365.48/x
  3. Step 3: Cross multiply
    62,082x = 85,760.28 × 55,365.48
  4. Step 4: Simplify right side
    62,082x = 4,748,159,067.13
  5. Step 5: Solve for x
    x = 4,748,159,067.13/62,082
  6. Step 6: Final answer
    x = 76,482.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.