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Finding the Fourth Proportional to 29,633.40, 40,899.96 and 19,562.40

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Solution

The fourth proportional to 29,633.40, 40,899.96 and 19,562.40 is: 26,999.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,633.40 : 40,899.96 = 19,562.40 : x
  2. Step 2: Convert to fraction form
    29,633.40/40,899.96 = 19,562.40/x
  3. Step 3: Cross multiply
    29,633.40x = 40,899.96 × 19,562.40
  4. Step 4: Simplify right side
    29,633.40x = 800,101,377.50
  5. Step 5: Solve for x
    x = 800,101,377.50/29,633.40
  6. Step 6: Final answer
    x = 26,999.99

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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.