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Finding the Fourth Proportional to 9,462.79, 13,060.19 and 5,486.21

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Solution

The fourth proportional to 9,462.79, 13,060.19 and 5,486.21 is: 7,571.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,462.79 : 13,060.19 = 5,486.21 : x
  2. Step 2: Convert to fraction form
    9,462.79/13,060.19 = 5,486.21/x
  3. Step 3: Cross multiply
    9,462.79x = 13,060.19 × 5,486.21
  4. Step 4: Simplify right side
    9,462.79x = 71,650,944.98
  5. Step 5: Solve for x
    x = 71,650,944.98/9,462.79
  6. Step 6: Final answer
    x = 7,571.86

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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.