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Finding the Fourth Proportional to 53,863.59, 80,795.30 and 53,785.68

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Solution

The fourth proportional to 53,863.59, 80,795.30 and 53,785.68 is: 80,678.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,863.59 : 80,795.30 = 53,785.68 : x
  2. Step 2: Convert to fraction form
    53,863.59/80,795.30 = 53,785.68/x
  3. Step 3: Cross multiply
    53,863.59x = 80,795.30 × 53,785.68
  4. Step 4: Simplify right side
    53,863.59x = 4,345,630,184.92
  5. Step 5: Solve for x
    x = 4,345,630,184.92/53,863.59
  6. Step 6: Final answer
    x = 80,678.43

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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.