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Finding the Fourth Proportional to 8,796.51, 12,139.20 and 4,817.62

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Solution

The fourth proportional to 8,796.51, 12,139.20 and 4,817.62 is: 6,648.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,796.51 : 12,139.20 = 4,817.62 : x
  2. Step 2: Convert to fraction form
    8,796.51/12,139.20 = 4,817.62/x
  3. Step 3: Cross multiply
    8,796.51x = 12,139.20 × 4,817.62
  4. Step 4: Simplify right side
    8,796.51x = 58,482,052.70
  5. Step 5: Solve for x
    x = 58,482,052.70/8,796.51
  6. Step 6: Final answer
    x = 6,648.32

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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.