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Finding the Fourth Proportional to 29,310.50, 40,448.97 and 20,941.22

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Solution

The fourth proportional to 29,310.50, 40,448.97 and 20,941.22 is: 28,899.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,310.50 : 40,448.97 = 20,941.22 : x
  2. Step 2: Convert to fraction form
    29,310.50/40,448.97 = 20,941.22/x
  3. Step 3: Cross multiply
    29,310.50x = 40,448.97 × 20,941.22
  4. Step 4: Simplify right side
    29,310.50x = 847,050,779.54
  5. Step 5: Solve for x
    x = 847,050,779.54/29,310.50
  6. Step 6: Final answer
    x = 28,899.23

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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.