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Finding the Fourth Proportional to 7,362.88, 11,054.04 and 5,729.92

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Solution

The fourth proportional to 7,362.88, 11,054.04 and 5,729.92 is: 8,602.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,362.88 : 11,054.04 = 5,729.92 : x
  2. Step 2: Convert to fraction form
    7,362.88/11,054.04 = 5,729.92/x
  3. Step 3: Cross multiply
    7,362.88x = 11,054.04 × 5,729.92
  4. Step 4: Simplify right side
    7,362.88x = 63,338,764.88
  5. Step 5: Solve for x
    x = 63,338,764.88/7,362.88
  6. Step 6: Final answer
    x = 8,602.44

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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.