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Finding the Fourth Proportional to 9,602.50, 13,251.45 and 5,186.50

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Solution

The fourth proportional to 9,602.50, 13,251.45 and 5,186.50 is: 7,157.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,602.50 : 13,251.45 = 5,186.50 : x
  2. Step 2: Convert to fraction form
    9,602.50/13,251.45 = 5,186.50/x
  3. Step 3: Cross multiply
    9,602.50x = 13,251.45 × 5,186.50
  4. Step 4: Simplify right side
    9,602.50x = 68,728,645.43
  5. Step 5: Solve for x
    x = 68,728,645.43/9,602.50
  6. Step 6: Final answer
    x = 7,157.37

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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.