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Finding the Fourth Proportional to 49,210.56, 73,816.08 and 12,274.56

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Solution

The fourth proportional to 49,210.56, 73,816.08 and 12,274.56 is: 18,411.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,210.56 : 73,816.08 = 12,274.56 : x
  2. Step 2: Convert to fraction form
    49,210.56/73,816.08 = 12,274.56/x
  3. Step 3: Cross multiply
    49,210.56x = 73,816.08 × 12,274.56
  4. Step 4: Simplify right side
    49,210.56x = 906,059,902.92
  5. Step 5: Solve for x
    x = 906,059,902.92/49,210.56
  6. Step 6: Final answer
    x = 18,411.90

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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.