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Finding the Fourth Proportional to 28,552.92, 42,818.70 and 9,827.68

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Solution

The fourth proportional to 28,552.92, 42,818.70 and 9,827.68 is: 14,737.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,552.92 : 42,818.70 = 9,827.68 : x
  2. Step 2: Convert to fraction form
    28,552.92/42,818.70 = 9,827.68/x
  3. Step 3: Cross multiply
    28,552.92x = 42,818.70 × 9,827.68
  4. Step 4: Simplify right side
    28,552.92x = 420,808,481.62
  5. Step 5: Solve for x
    x = 420,808,481.62/28,552.92
  6. Step 6: Final answer
    x = 14,737.84

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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.