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Finding the Fourth Proportional to 49,999.20, 75,007.20 and 14,942.40

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Solution

The fourth proportional to 49,999.20, 75,007.20 and 14,942.40 is: 22,416.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,999.20 : 75,007.20 = 14,942.40 : x
  2. Step 2: Convert to fraction form
    49,999.20/75,007.20 = 14,942.40/x
  3. Step 3: Cross multiply
    49,999.20x = 75,007.20 × 14,942.40
  4. Step 4: Simplify right side
    49,999.20x = 1,120,787,585.28
  5. Step 5: Solve for x
    x = 1,120,787,585.28/49,999.20
  6. Step 6: Final answer
    x = 22,416.11

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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.