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Finding the Fourth Proportional to 73,007.97, 109,511.94 and 20,417.45

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Solution

The fourth proportional to 73,007.97, 109,511.94 and 20,417.45 is: 30,626.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,007.97 : 109,511.94 = 20,417.45 : x
  2. Step 2: Convert to fraction form
    73,007.97/109,511.94 = 20,417.45/x
  3. Step 3: Cross multiply
    73,007.97x = 109,511.94 × 20,417.45
  4. Step 4: Simplify right side
    73,007.97x = 2,235,954,011.79
  5. Step 5: Solve for x
    x = 2,235,954,011.79/73,007.97
  6. Step 6: Final answer
    x = 30,626.16

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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.