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Finding the Fourth Proportional to 8,235.92, 12,359.64 and 3,042.56

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Solution

The fourth proportional to 8,235.92, 12,359.64 and 3,042.56 is: 4,565.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,235.92 : 12,359.64 = 3,042.56 : x
  2. Step 2: Convert to fraction form
    8,235.92/12,359.64 = 3,042.56/x
  3. Step 3: Cross multiply
    8,235.92x = 12,359.64 × 3,042.56
  4. Step 4: Simplify right side
    8,235.92x = 37,604,946.28
  5. Step 5: Solve for x
    x = 37,604,946.28/8,235.92
  6. Step 6: Final answer
    x = 4,565.97

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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.