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Finding the Fourth Proportional to 8,808.48, 12,155.82 and 4,829.58

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Solution

The fourth proportional to 8,808.48, 12,155.82 and 4,829.58 is: 6,664.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,808.48 : 12,155.82 = 4,829.58 : x
  2. Step 2: Convert to fraction form
    8,808.48/12,155.82 = 4,829.58/x
  3. Step 3: Cross multiply
    8,808.48x = 12,155.82 × 4,829.58
  4. Step 4: Simplify right side
    8,808.48x = 58,707,505.16
  5. Step 5: Solve for x
    x = 58,707,505.16/8,808.48
  6. Step 6: Final answer
    x = 6,664.88

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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.