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Finding the Fourth Proportional to 8,730.91, 12,048.42 and 4,953.97

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Solution

The fourth proportional to 8,730.91, 12,048.42 and 4,953.97 is: 6,836.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,730.91 : 12,048.42 = 4,953.97 : x
  2. Step 2: Convert to fraction form
    8,730.91/12,048.42 = 4,953.97/x
  3. Step 3: Cross multiply
    8,730.91x = 12,048.42 × 4,953.97
  4. Step 4: Simplify right side
    8,730.91x = 59,687,511.23
  5. Step 5: Solve for x
    x = 59,687,511.23/8,730.91
  6. Step 6: Final answer
    x = 6,836.34

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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.