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Finding the Fourth Proportional to 60,871.30, 91,300.46 and 28,842.64

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Solution

The fourth proportional to 60,871.30, 91,300.46 and 28,842.64 is: 43,260.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,871.30 : 91,300.46 = 28,842.64 : x
  2. Step 2: Convert to fraction form
    60,871.30/91,300.46 = 28,842.64/x
  3. Step 3: Cross multiply
    60,871.30x = 91,300.46 × 28,842.64
  4. Step 4: Simplify right side
    60,871.30x = 2,633,346,299.61
  5. Step 5: Solve for x
    x = 2,633,346,299.61/60,871.30
  6. Step 6: Final answer
    x = 43,260.88

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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.