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Finding the Fourth Proportional to 65,693.53, 98,540.84 and 28,251.01

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Solution

The fourth proportional to 65,693.53, 98,540.84 and 28,251.01 is: 42,376.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,693.53 : 98,540.84 = 28,251.01 : x
  2. Step 2: Convert to fraction form
    65,693.53/98,540.84 = 28,251.01/x
  3. Step 3: Cross multiply
    65,693.53x = 98,540.84 × 28,251.01
  4. Step 4: Simplify right side
    65,693.53x = 2,783,878,114.99
  5. Step 5: Solve for x
    x = 2,783,878,114.99/65,693.53
  6. Step 6: Final answer
    x = 42,376.75

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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.