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Finding the Fourth Proportional to 13,374.42, 20,064.33 and 9,216.42

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Solution

The fourth proportional to 13,374.42, 20,064.33 and 9,216.42 is: 13,826.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,374.42 : 20,064.33 = 9,216.42 : x
  2. Step 2: Convert to fraction form
    13,374.42/20,064.33 = 9,216.42/x
  3. Step 3: Cross multiply
    13,374.42x = 20,064.33 × 9,216.42
  4. Step 4: Simplify right side
    13,374.42x = 184,921,292.30
  5. Step 5: Solve for x
    x = 184,921,292.30/13,374.42
  6. Step 6: Final answer
    x = 13,826.49

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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.