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Finding the Fourth Proportional to 15,054.64, 20,773.69 and 8,338.59

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Solution

The fourth proportional to 15,054.64, 20,773.69 and 8,338.59 is: 11,506.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,054.64 : 20,773.69 = 8,338.59 : x
  2. Step 2: Convert to fraction form
    15,054.64/20,773.69 = 8,338.59/x
  3. Step 3: Cross multiply
    15,054.64x = 20,773.69 × 8,338.59
  4. Step 4: Simplify right side
    15,054.64x = 173,223,262.85
  5. Step 5: Solve for x
    x = 173,223,262.85/15,054.64
  6. Step 6: Final answer
    x = 11,506.31

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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.