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Finding the Fourth Proportional to 8,530.32, 11,773.32 and 5,388.24

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Solution

The fourth proportional to 8,530.32, 11,773.32 and 5,388.24 is: 7,436.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,530.32 : 11,773.32 = 5,388.24 : x
  2. Step 2: Convert to fraction form
    8,530.32/11,773.32 = 5,388.24/x
  3. Step 3: Cross multiply
    8,530.32x = 11,773.32 × 5,388.24
  4. Step 4: Simplify right side
    8,530.32x = 63,437,473.76
  5. Step 5: Solve for x
    x = 63,437,473.76/8,530.32
  6. Step 6: Final answer
    x = 7,436.71

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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.