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Finding the Fourth Proportional to 62,969.84, 86,895.32 and 34,674.80

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Solution

The fourth proportional to 62,969.84, 86,895.32 and 34,674.80 is: 47,849.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,969.84 : 86,895.32 = 34,674.80 : x
  2. Step 2: Convert to fraction form
    62,969.84/86,895.32 = 34,674.80/x
  3. Step 3: Cross multiply
    62,969.84x = 86,895.32 × 34,674.80
  4. Step 4: Simplify right side
    62,969.84x = 3,013,077,841.94
  5. Step 5: Solve for x
    x = 3,013,077,841.94/62,969.84
  6. Step 6: Final answer
    x = 47,849.54

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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.