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Finding the Fourth Proportional to 65,842.10, 90,861.46 and 35,626.76

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Solution

The fourth proportional to 65,842.10, 90,861.46 and 35,626.76 is: 49,164.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,842.10 : 90,861.46 = 35,626.76 : x
  2. Step 2: Convert to fraction form
    65,842.10/90,861.46 = 35,626.76/x
  3. Step 3: Cross multiply
    65,842.10x = 90,861.46 × 35,626.76
  4. Step 4: Simplify right side
    65,842.10x = 3,237,099,428.67
  5. Step 5: Solve for x
    x = 3,237,099,428.67/65,842.10
  6. Step 6: Final answer
    x = 49,164.58

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1.5x scale

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.