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Finding the Fourth Proportional to 62,865.72, 86,754.24 and 34,570.80

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Solution

The fourth proportional to 62,865.72, 86,754.24 and 34,570.80 is: 47,707.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,865.72 : 86,754.24 = 34,570.80 : x
  2. Step 2: Convert to fraction form
    62,865.72/86,754.24 = 34,570.80/x
  3. Step 3: Cross multiply
    62,865.72x = 86,754.24 × 34,570.80
  4. Step 4: Simplify right side
    62,865.72x = 2,999,163,480.19
  5. Step 5: Solve for x
    x = 2,999,163,480.19/62,865.72
  6. Step 6: Final answer
    x = 47,707.45

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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.