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Finding the Fourth Proportional to 89,863.72, 134,823.68 and 26,684.20

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Solution

The fourth proportional to 89,863.72, 134,823.68 and 26,684.20 is: 40,034.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,863.72 : 134,823.68 = 26,684.20 : x
  2. Step 2: Convert to fraction form
    89,863.72/134,823.68 = 26,684.20/x
  3. Step 3: Cross multiply
    89,863.72x = 134,823.68 × 26,684.20
  4. Step 4: Simplify right side
    89,863.72x = 3,597,662,041.86
  5. Step 5: Solve for x
    x = 3,597,662,041.86/89,863.72
  6. Step 6: Final answer
    x = 40,034.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.