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Finding the Fourth Proportional to 61,802.77, 92,704.14 and 28,512.97

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Solution

The fourth proportional to 61,802.77, 92,704.14 and 28,512.97 is: 42,769.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,802.77 : 92,704.14 = 28,512.97 : x
  2. Step 2: Convert to fraction form
    61,802.77/92,704.14 = 28,512.97/x
  3. Step 3: Cross multiply
    61,802.77x = 92,704.14 × 28,512.97
  4. Step 4: Simplify right side
    61,802.77x = 2,643,270,362.70
  5. Step 5: Solve for x
    x = 2,643,270,362.70/61,802.77
  6. Step 6: Final answer
    x = 42,769.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.