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Finding the Fourth Proportional to 29,959.90, 44,949.45 and 20,110.30

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Solution

The fourth proportional to 29,959.90, 44,949.45 and 20,110.30 is: 30,171.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,959.90 : 44,949.45 = 20,110.30 : x
  2. Step 2: Convert to fraction form
    29,959.90/44,949.45 = 20,110.30/x
  3. Step 3: Cross multiply
    29,959.90x = 44,949.45 × 20,110.30
  4. Step 4: Simplify right side
    29,959.90x = 903,946,924.34
  5. Step 5: Solve for x
    x = 903,946,924.34/29,959.90
  6. Step 6: Final answer
    x = 30,171.89

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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.