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Finding the Fourth Proportional to 62,868.61, 86,756.95 and 34,574.30

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Solution

The fourth proportional to 62,868.61, 86,756.95 and 34,574.30 is: 47,711.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,868.61 : 86,756.95 = 34,574.30 : x
  2. Step 2: Convert to fraction form
    62,868.61/86,756.95 = 34,574.30/x
  3. Step 3: Cross multiply
    62,868.61x = 86,756.95 × 34,574.30
  4. Step 4: Simplify right side
    62,868.61x = 2,999,560,816.39
  5. Step 5: Solve for x
    x = 2,999,560,816.39/62,868.61
  6. Step 6: Final answer
    x = 47,711.58

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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.