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Finding the Fourth Proportional to 62,136, 93,202.56 and 15,389.28

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Solution

The fourth proportional to 62,136, 93,202.56 and 15,389.28 is: 23,083.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,136 : 93,202.56 = 15,389.28 : x
  2. Step 2: Convert to fraction form
    62,136/93,202.56 = 15,389.28/x
  3. Step 3: Cross multiply
    62,136x = 93,202.56 × 15,389.28
  4. Step 4: Simplify right side
    62,136x = 1,434,320,292.56
  5. Step 5: Solve for x
    x = 1,434,320,292.56/62,136
  6. Step 6: Final answer
    x = 23,083.56

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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.