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Finding the Fourth Proportional to 49,164.40, 73,746.60 and 12,228.40

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Solution

The fourth proportional to 49,164.40, 73,746.60 and 12,228.40 is: 18,342.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,164.40 : 73,746.60 = 12,228.40 : x
  2. Step 2: Convert to fraction form
    49,164.40/73,746.60 = 12,228.40/x
  3. Step 3: Cross multiply
    49,164.40x = 73,746.60 × 12,228.40
  4. Step 4: Simplify right side
    49,164.40x = 901,802,923.44
  5. Step 5: Solve for x
    x = 901,802,923.44/49,164.40
  6. Step 6: Final answer
    x = 18,342.60

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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.