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Finding the Fourth Proportional to 8,672.12, 11,966.66 and 4,894.92

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Solution

The fourth proportional to 8,672.12, 11,966.66 and 4,894.92 is: 6,754.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,672.12 : 11,966.66 = 4,894.92 : x
  2. Step 2: Convert to fraction form
    8,672.12/11,966.66 = 4,894.92/x
  3. Step 3: Cross multiply
    8,672.12x = 11,966.66 × 4,894.92
  4. Step 4: Simplify right side
    8,672.12x = 58,575,843.37
  5. Step 5: Solve for x
    x = 58,575,843.37/8,672.12
  6. Step 6: Final answer
    x = 6,754.50

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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.