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Finding the Fourth Proportional to 8,765.52, 12,092.04 and 5,619.36

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Solution

The fourth proportional to 8,765.52, 12,092.04 and 5,619.36 is: 7,751.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,765.52 : 12,092.04 = 5,619.36 : x
  2. Step 2: Convert to fraction form
    8,765.52/12,092.04 = 5,619.36/x
  3. Step 3: Cross multiply
    8,765.52x = 12,092.04 × 5,619.36
  4. Step 4: Simplify right side
    8,765.52x = 67,949,525.89
  5. Step 5: Solve for x
    x = 67,949,525.89/8,765.52
  6. Step 6: Final answer
    x = 7,751.91

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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.