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Finding the Fourth Proportional to 20,463.97, 30,696.60 and 5,673.01

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Solution

The fourth proportional to 20,463.97, 30,696.60 and 5,673.01 is: 8,509.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,463.97 : 30,696.60 = 5,673.01 : x
  2. Step 2: Convert to fraction form
    20,463.97/30,696.60 = 5,673.01/x
  3. Step 3: Cross multiply
    20,463.97x = 30,696.60 × 5,673.01
  4. Step 4: Simplify right side
    20,463.97x = 174,142,118.77
  5. Step 5: Solve for x
    x = 174,142,118.77/20,463.97
  6. Step 6: Final answer
    x = 8,509.69

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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.