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Finding the Fourth Proportional to 23,741.80, 35,612.70 and 19,940.20

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Solution

The fourth proportional to 23,741.80, 35,612.70 and 19,940.20 is: 29,910.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,741.80 : 35,612.70 = 19,940.20 : x
  2. Step 2: Convert to fraction form
    23,741.80/35,612.70 = 19,940.20/x
  3. Step 3: Cross multiply
    23,741.80x = 35,612.70 × 19,940.20
  4. Step 4: Simplify right side
    23,741.80x = 710,124,360.54
  5. Step 5: Solve for x
    x = 710,124,360.54/23,741.80
  6. Step 6: Final answer
    x = 29,910.30

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Double scale
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Similar ratio
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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.