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Finding the Fourth Proportional to 29,124.70, 43,687.05 and 9,403.90

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Solution

The fourth proportional to 29,124.70, 43,687.05 and 9,403.90 is: 14,105.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,124.70 : 43,687.05 = 9,403.90 : x
  2. Step 2: Convert to fraction form
    29,124.70/43,687.05 = 9,403.90/x
  3. Step 3: Cross multiply
    29,124.70x = 43,687.05 × 9,403.90
  4. Step 4: Simplify right side
    29,124.70x = 410,828,649.50
  5. Step 5: Solve for x
    x = 410,828,649.50/29,124.70
  6. Step 6: Final answer
    x = 14,105.85

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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.