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Finding the Fourth Proportional to 8,960.79, 13,444.86 and 3,960.52

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Solution

The fourth proportional to 8,960.79, 13,444.86 and 3,960.52 is: 5,942.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,960.79 : 13,444.86 = 3,960.52 : x
  2. Step 2: Convert to fraction form
    8,960.79/13,444.86 = 3,960.52/x
  3. Step 3: Cross multiply
    8,960.79x = 13,444.86 × 3,960.52
  4. Step 4: Simplify right side
    8,960.79x = 53,248,644.84
  5. Step 5: Solve for x
    x = 53,248,644.84/8,960.79
  6. Step 6: Final answer
    x = 5,942.41

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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.