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Finding the Fourth Proportional to 62,971.98, 86,901.32 and 34,677.68

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Solution

The fourth proportional to 62,971.98, 86,901.32 and 34,677.68 is: 47,855.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,971.98 : 86,901.32 = 34,677.68 : x
  2. Step 2: Convert to fraction form
    62,971.98/86,901.32 = 34,677.68/x
  3. Step 3: Cross multiply
    62,971.98x = 86,901.32 × 34,677.68
  4. Step 4: Simplify right side
    62,971.98x = 3,013,535,558.64
  5. Step 5: Solve for x
    x = 3,013,535,558.64/62,971.98
  6. Step 6: Final answer
    x = 47,855.18

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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.