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Finding the Fourth Proportional to 8,732.94, 12,068.56 and 7,760.94

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Solution

The fourth proportional to 8,732.94, 12,068.56 and 7,760.94 is: 10,725.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,732.94 : 12,068.56 = 7,760.94 : x
  2. Step 2: Convert to fraction form
    8,732.94/12,068.56 = 7,760.94/x
  3. Step 3: Cross multiply
    8,732.94x = 12,068.56 × 7,760.94
  4. Step 4: Simplify right side
    8,732.94x = 93,663,370.05
  5. Step 5: Solve for x
    x = 93,663,370.05/8,732.94
  6. Step 6: Final answer
    x = 10,725.30

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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.