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Finding the Fourth Proportional to 64,856.68, 89,494.27 and 36,169.63

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Solution

The fourth proportional to 64,856.68, 89,494.27 and 36,169.63 is: 49,909.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,856.68 : 89,494.27 = 36,169.63 : x
  2. Step 2: Convert to fraction form
    64,856.68/89,494.27 = 36,169.63/x
  3. Step 3: Cross multiply
    64,856.68x = 89,494.27 × 36,169.63
  4. Step 4: Simplify right side
    64,856.68x = 3,236,974,318.86
  5. Step 5: Solve for x
    x = 3,236,974,318.86/64,856.68
  6. Step 6: Final answer
    x = 49,909.65

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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.