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Finding the Fourth Proportional to 65,842.85, 90,863.79 and 35,628.76

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Solution

The fourth proportional to 65,842.85, 90,863.79 and 35,628.76 is: 49,168.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,842.85 : 90,863.79 = 35,628.76 : x
  2. Step 2: Convert to fraction form
    65,842.85/90,863.79 = 35,628.76/x
  3. Step 3: Cross multiply
    65,842.85x = 90,863.79 × 35,628.76
  4. Step 4: Simplify right side
    65,842.85x = 3,237,364,166.60
  5. Step 5: Solve for x
    x = 3,237,364,166.60/65,842.85
  6. Step 6: Final answer
    x = 49,168.04

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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.