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Finding the Fourth Proportional to 13,685.01, 20,527.55 and 3,824.22

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Solution

The fourth proportional to 13,685.01, 20,527.55 and 3,824.22 is: 5,736.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,685.01 : 20,527.55 = 3,824.22 : x
  2. Step 2: Convert to fraction form
    13,685.01/20,527.55 = 3,824.22/x
  3. Step 3: Cross multiply
    13,685.01x = 20,527.55 × 3,824.22
  4. Step 4: Simplify right side
    13,685.01x = 78,501,867.26
  5. Step 5: Solve for x
    x = 78,501,867.26/13,685.01
  6. Step 6: Final answer
    x = 5,736.34

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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.