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Finding the Fourth Proportional to 28,096.92, 42,145.36 and 8,374.97

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Solution

The fourth proportional to 28,096.92, 42,145.36 and 8,374.97 is: 12,562.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,096.92 : 42,145.36 = 8,374.97 : x
  2. Step 2: Convert to fraction form
    28,096.92/42,145.36 = 8,374.97/x
  3. Step 3: Cross multiply
    28,096.92x = 42,145.36 × 8,374.97
  4. Step 4: Simplify right side
    28,096.92x = 352,966,125.64
  5. Step 5: Solve for x
    x = 352,966,125.64/28,096.92
  6. Step 6: Final answer
    x = 12,562.45

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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.