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Finding the Fourth Proportional to 62,938.11, 86,855.19 and 34,644

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Solution

The fourth proportional to 62,938.11, 86,855.19 and 34,644 is: 47,809.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,938.11 : 86,855.19 = 34,644 : x
  2. Step 2: Convert to fraction form
    62,938.11/86,855.19 = 34,644/x
  3. Step 3: Cross multiply
    62,938.11x = 86,855.19 × 34,644
  4. Step 4: Simplify right side
    62,938.11x = 3,009,011,202.36
  5. Step 5: Solve for x
    x = 3,009,011,202.36/62,938.11
  6. Step 6: Final answer
    x = 47,809.05

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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.