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Finding the Fourth Proportional to 62,412, 86,128.56 and 34,117.89

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Solution

The fourth proportional to 62,412, 86,128.56 and 34,117.89 is: 47,082.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,412 : 86,128.56 = 34,117.89 : x
  2. Step 2: Convert to fraction form
    62,412/86,128.56 = 34,117.89/x
  3. Step 3: Cross multiply
    62,412x = 86,128.56 × 34,117.89
  4. Step 4: Simplify right side
    62,412x = 2,938,524,735.94
  5. Step 5: Solve for x
    x = 2,938,524,735.94/62,412
  6. Step 6: Final answer
    x = 47,082.69

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