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Finding the Fourth Proportional to 65,984.87, 91,060.26 and 37,690.76

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Solution

The fourth proportional to 65,984.87, 91,060.26 and 37,690.76 is: 52,013.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,984.87 : 91,060.26 = 37,690.76 : x
  2. Step 2: Convert to fraction form
    65,984.87/91,060.26 = 37,690.76/x
  3. Step 3: Cross multiply
    65,984.87x = 91,060.26 × 37,690.76
  4. Step 4: Simplify right side
    65,984.87x = 3,432,130,405.20
  5. Step 5: Solve for x
    x = 3,432,130,405.20/65,984.87
  6. Step 6: Final answer
    x = 52,013.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.