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Finding the Fourth Proportional to 13,241.83, 18,274.05 and 7,274.05

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Solution

The fourth proportional to 13,241.83, 18,274.05 and 7,274.05 is: 10,038.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,241.83 : 18,274.05 = 7,274.05 : x
  2. Step 2: Convert to fraction form
    13,241.83/18,274.05 = 7,274.05/x
  3. Step 3: Cross multiply
    13,241.83x = 18,274.05 × 7,274.05
  4. Step 4: Simplify right side
    13,241.83x = 132,926,353.40
  5. Step 5: Solve for x
    x = 132,926,353.40/13,241.83
  6. Step 6: Final answer
    x = 10,038.37

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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.