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Finding the Fourth Proportional to 29,059.80, 43,568.10 and 12,406.20

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Solution

The fourth proportional to 29,059.80, 43,568.10 and 12,406.20 is: 18,600.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,059.80 : 43,568.10 = 12,406.20 : x
  2. Step 2: Convert to fraction form
    29,059.80/43,568.10 = 12,406.20/x
  3. Step 3: Cross multiply
    29,059.80x = 43,568.10 × 12,406.20
  4. Step 4: Simplify right side
    29,059.80x = 540,514,562.22
  5. Step 5: Solve for x
    x = 540,514,562.22/29,059.80
  6. Step 6: Final answer
    x = 18,600.08

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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.