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Finding the Fourth Proportional to 29,291.12, 43,941.08 and 8,511.92

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Solution

The fourth proportional to 29,291.12, 43,941.08 and 8,511.92 is: 12,769.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,291.12 : 43,941.08 = 8,511.92 : x
  2. Step 2: Convert to fraction form
    29,291.12/43,941.08 = 8,511.92/x
  3. Step 3: Cross multiply
    29,291.12x = 43,941.08 × 8,511.92
  4. Step 4: Simplify right side
    29,291.12x = 374,022,957.67
  5. Step 5: Solve for x
    x = 374,022,957.67/29,291.12
  6. Step 6: Final answer
    x = 12,769.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.