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Finding the Fourth Proportional to 8,660.54, 11,951.47 and 4,681.62

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Solution

The fourth proportional to 8,660.54, 11,951.47 and 4,681.62 is: 6,460.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,660.54 : 11,951.47 = 4,681.62 : x
  2. Step 2: Convert to fraction form
    8,660.54/11,951.47 = 4,681.62/x
  3. Step 3: Cross multiply
    8,660.54x = 11,951.47 × 4,681.62
  4. Step 4: Simplify right side
    8,660.54x = 55,952,240.98
  5. Step 5: Solve for x
    x = 55,952,240.98/8,660.54
  6. Step 6: Final answer
    x = 6,460.59

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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.