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Finding the Fourth Proportional to 61,901.52, 92,768.20 and 28,548.24

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Solution

The fourth proportional to 61,901.52, 92,768.20 and 28,548.24 is: 42,783.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,901.52 : 92,768.20 = 28,548.24 : x
  2. Step 2: Convert to fraction form
    61,901.52/92,768.20 = 28,548.24/x
  3. Step 3: Cross multiply
    61,901.52x = 92,768.20 × 28,548.24
  4. Step 4: Simplify right side
    61,901.52x = 2,648,368,837.97
  5. Step 5: Solve for x
    x = 2,648,368,837.97/61,901.52
  6. Step 6: Final answer
    x = 42,783.58

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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.