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Finding the Fourth Proportional to 61,954.56, 92,978.58 and 28,697.96

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Solution

The fourth proportional to 61,954.56, 92,978.58 and 28,697.96 is: 43,068.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,954.56 : 92,978.58 = 28,697.96 : x
  2. Step 2: Convert to fraction form
    61,954.56/92,978.58 = 28,697.96/x
  3. Step 3: Cross multiply
    61,954.56x = 92,978.58 × 28,697.96
  4. Step 4: Simplify right side
    61,954.56x = 2,668,295,569.70
  5. Step 5: Solve for x
    x = 2,668,295,569.70/61,954.56
  6. Step 6: Final answer
    x = 43,068.59

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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.