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Finding the Fourth Proportional to 18,402.96, 25,396.44 and 10,019.46

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Solution

The fourth proportional to 18,402.96, 25,396.44 and 10,019.46 is: 13,827.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,402.96 : 25,396.44 = 10,019.46 : x
  2. Step 2: Convert to fraction form
    18,402.96/25,396.44 = 10,019.46/x
  3. Step 3: Cross multiply
    18,402.96x = 25,396.44 × 10,019.46
  4. Step 4: Simplify right side
    18,402.96x = 254,458,614.72
  5. Step 5: Solve for x
    x = 254,458,614.72/18,402.96
  6. Step 6: Final answer
    x = 13,827.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.