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Finding the Fourth Proportional to 61,801.12, 92,630.28 and 28,451.28

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Solution

The fourth proportional to 61,801.12, 92,630.28 and 28,451.28 is: 42,644.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,801.12 : 92,630.28 = 28,451.28 : x
  2. Step 2: Convert to fraction form
    61,801.12/92,630.28 = 28,451.28/x
  3. Step 3: Cross multiply
    61,801.12x = 92,630.28 × 28,451.28
  4. Step 4: Simplify right side
    61,801.12x = 2,635,450,032.76
  5. Step 5: Solve for x
    x = 2,635,450,032.76/61,801.12
  6. Step 6: Final answer
    x = 42,644.05

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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.