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Finding the Fourth Proportional to 28,844.48, 39,805.44 and 15,596.48

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Solution

The fourth proportional to 28,844.48, 39,805.44 and 15,596.48 is: 21,523.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,844.48 : 39,805.44 = 15,596.48 : x
  2. Step 2: Convert to fraction form
    28,844.48/39,805.44 = 15,596.48/x
  3. Step 3: Cross multiply
    28,844.48x = 39,805.44 × 15,596.48
  4. Step 4: Simplify right side
    28,844.48x = 620,824,748.85
  5. Step 5: Solve for x
    x = 620,824,748.85/28,844.48
  6. Step 6: Final answer
    x = 21,523.17

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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.