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Finding the Fourth Proportional to 48,793.92, 67,310.88 and 30,858.72

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Solution

The fourth proportional to 48,793.92, 67,310.88 and 30,858.72 is: 42,569.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,793.92 : 67,310.88 = 30,858.72 : x
  2. Step 2: Convert to fraction form
    48,793.92/67,310.88 = 30,858.72/x
  3. Step 3: Cross multiply
    48,793.92x = 67,310.88 × 30,858.72
  4. Step 4: Simplify right side
    48,793.92x = 2,077,127,598.87
  5. Step 5: Solve for x
    x = 2,077,127,598.87/48,793.92
  6. Step 6: Final answer
    x = 42,569.39

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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.