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Finding the Fourth Proportional to 13,892.71, 20,839.73 and 4,532.72

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Solution

The fourth proportional to 13,892.71, 20,839.73 and 4,532.72 is: 6,799.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,892.71 : 20,839.73 = 4,532.72 : x
  2. Step 2: Convert to fraction form
    13,892.71/20,839.73 = 4,532.72/x
  3. Step 3: Cross multiply
    13,892.71x = 20,839.73 × 4,532.72
  4. Step 4: Simplify right side
    13,892.71x = 94,460,559.60
  5. Step 5: Solve for x
    x = 94,460,559.60/13,892.71
  6. Step 6: Final answer
    x = 6,799.29

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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.