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Finding the Fourth Proportional to 7,471.98, 11,191.77 and 7,264.62

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Solution

The fourth proportional to 7,471.98, 11,191.77 and 7,264.62 is: 10,881.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,471.98 : 11,191.77 = 7,264.62 : x
  2. Step 2: Convert to fraction form
    7,471.98/11,191.77 = 7,264.62/x
  3. Step 3: Cross multiply
    7,471.98x = 11,191.77 × 7,264.62
  4. Step 4: Simplify right side
    7,471.98x = 81,303,956.18
  5. Step 5: Solve for x
    x = 81,303,956.18/7,471.98
  6. Step 6: Final answer
    x = 10,881.18

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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.