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Finding the Fourth Proportional to 61,811, 92,732.04 and 28,554.58

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Solution

The fourth proportional to 61,811, 92,732.04 and 28,554.58 is: 42,839.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,811 : 92,732.04 = 28,554.58 : x
  2. Step 2: Convert to fraction form
    61,811/92,732.04 = 28,554.58/x
  3. Step 3: Cross multiply
    61,811x = 92,732.04 × 28,554.58
  4. Step 4: Simplify right side
    61,811x = 2,647,924,454.74
  5. Step 5: Solve for x
    x = 2,647,924,454.74/61,811
  6. Step 6: Final answer
    x = 42,839.05

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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.