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Finding the Fourth Proportional to 9,611.78, 13,264.29 and 5,362.76

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Solution

The fourth proportional to 9,611.78, 13,264.29 and 5,362.76 is: 7,400.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,611.78 : 13,264.29 = 5,362.76 : x
  2. Step 2: Convert to fraction form
    9,611.78/13,264.29 = 5,362.76/x
  3. Step 3: Cross multiply
    9,611.78x = 13,264.29 × 5,362.76
  4. Step 4: Simplify right side
    9,611.78x = 71,133,226.98
  5. Step 5: Solve for x
    x = 71,133,226.98/9,611.78
  6. Step 6: Final answer
    x = 7,400.63

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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.