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Finding the Fourth Proportional to 13,629.94, 20,444.94 and 4,395.94

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Solution

The fourth proportional to 13,629.94, 20,444.94 and 4,395.94 is: 6,593.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,629.94 : 20,444.94 = 4,395.94 : x
  2. Step 2: Convert to fraction form
    13,629.94/20,444.94 = 4,395.94/x
  3. Step 3: Cross multiply
    13,629.94x = 20,444.94 × 4,395.94
  4. Step 4: Simplify right side
    13,629.94x = 89,874,678.43
  5. Step 5: Solve for x
    x = 89,874,678.43/13,629.94
  6. Step 6: Final answer
    x = 6,593.92

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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.