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Finding the Fourth Proportional to 73,033.40, 100,785.52 and 39,499.40

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Solution

The fourth proportional to 73,033.40, 100,785.52 and 39,499.40 is: 54,508.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,033.40 : 100,785.52 = 39,499.40 : x
  2. Step 2: Convert to fraction form
    73,033.40/100,785.52 = 39,499.40/x
  3. Step 3: Cross multiply
    73,033.40x = 100,785.52 × 39,499.40
  4. Step 4: Simplify right side
    73,033.40x = 3,980,967,568.69
  5. Step 5: Solve for x
    x = 3,980,967,568.69/73,033.40
  6. Step 6: Final answer
    x = 54,508.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.