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Finding the Fourth Proportional to 10,659.42, 15,991.47 and 3,264.44

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Solution

The fourth proportional to 10,659.42, 15,991.47 and 3,264.44 is: 4,897.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,659.42 : 15,991.47 = 3,264.44 : x
  2. Step 2: Convert to fraction form
    10,659.42/15,991.47 = 3,264.44/x
  3. Step 3: Cross multiply
    10,659.42x = 15,991.47 × 3,264.44
  4. Step 4: Simplify right side
    10,659.42x = 52,203,114.37
  5. Step 5: Solve for x
    x = 52,203,114.37/10,659.42
  6. Step 6: Final answer
    x = 4,897.37

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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.