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Finding the Fourth Proportional to 29,618.89, 40,874.06 and 16,190.20

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Solution

The fourth proportional to 29,618.89, 40,874.06 and 16,190.20 is: 22,342.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,618.89 : 40,874.06 = 16,190.20 : x
  2. Step 2: Convert to fraction form
    29,618.89/40,874.06 = 16,190.20/x
  3. Step 3: Cross multiply
    29,618.89x = 40,874.06 × 16,190.20
  4. Step 4: Simplify right side
    29,618.89x = 661,759,148.11
  5. Step 5: Solve for x
    x = 661,759,148.11/29,618.89
  6. Step 6: Final answer
    x = 22,342.47

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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.