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Finding the Fourth Proportional to 67,314.56, 92,895.96 and 38,636.68

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Solution

The fourth proportional to 67,314.56, 92,895.96 and 38,636.68 is: 53,319.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,314.56 : 92,895.96 = 38,636.68 : x
  2. Step 2: Convert to fraction form
    67,314.56/92,895.96 = 38,636.68/x
  3. Step 3: Cross multiply
    67,314.56x = 92,895.96 × 38,636.68
  4. Step 4: Simplify right side
    67,314.56x = 3,589,191,479.81
  5. Step 5: Solve for x
    x = 3,589,191,479.81/67,314.56
  6. Step 6: Final answer
    x = 53,319.69

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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.