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Finding the Fourth Proportional to 8,796.60, 12,139.07 and 4,817.88

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Solution

The fourth proportional to 8,796.60, 12,139.07 and 4,817.88 is: 6,648.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,796.60 : 12,139.07 = 4,817.88 : x
  2. Step 2: Convert to fraction form
    8,796.60/12,139.07 = 4,817.88/x
  3. Step 3: Cross multiply
    8,796.60x = 12,139.07 × 4,817.88
  4. Step 4: Simplify right side
    8,796.60x = 58,484,558.48
  5. Step 5: Solve for x
    x = 58,484,558.48/8,796.60
  6. Step 6: Final answer
    x = 6,648.54

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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.