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Finding the Fourth Proportional to 48,902.80, 73,354.20 and 19,305.40

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Solution

The fourth proportional to 48,902.80, 73,354.20 and 19,305.40 is: 28,958.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,902.80 : 73,354.20 = 19,305.40 : x
  2. Step 2: Convert to fraction form
    48,902.80/73,354.20 = 19,305.40/x
  3. Step 3: Cross multiply
    48,902.80x = 73,354.20 × 19,305.40
  4. Step 4: Simplify right side
    48,902.80x = 1,416,132,172.68
  5. Step 5: Solve for x
    x = 1,416,132,172.68/48,902.80
  6. Step 6: Final answer
    x = 28,958.10

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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.