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Finding the Fourth Proportional to 8,832.36, 12,188.68 and 4,799.20

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Solution

The fourth proportional to 8,832.36, 12,188.68 and 4,799.20 is: 6,622.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,832.36 : 12,188.68 = 4,799.20 : x
  2. Step 2: Convert to fraction form
    8,832.36/12,188.68 = 4,799.20/x
  3. Step 3: Cross multiply
    8,832.36x = 12,188.68 × 4,799.20
  4. Step 4: Simplify right side
    8,832.36x = 58,495,913.06
  5. Step 5: Solve for x
    x = 58,495,913.06/8,832.36
  6. Step 6: Final answer
    x = 6,622.91

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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.