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Finding the Fourth Proportional to 67,317.57, 100,927.76 and 20,544.93

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Solution

The fourth proportional to 67,317.57, 100,927.76 and 20,544.93 is: 30,802.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,317.57 : 100,927.76 = 20,544.93 : x
  2. Step 2: Convert to fraction form
    67,317.57/100,927.76 = 20,544.93/x
  3. Step 3: Cross multiply
    67,317.57x = 100,927.76 × 20,544.93
  4. Step 4: Simplify right side
    67,317.57x = 2,073,553,661.53
  5. Step 5: Solve for x
    x = 2,073,553,661.53/67,317.57
  6. Step 6: Final answer
    x = 30,802.56

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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.