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Finding the Fourth Proportional to 19,064.49, 28,596.73 and 5,213.49

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Solution

The fourth proportional to 19,064.49, 28,596.73 and 5,213.49 is: 7,820.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,064.49 : 28,596.73 = 5,213.49 : x
  2. Step 2: Convert to fraction form
    19,064.49/28,596.73 = 5,213.49/x
  3. Step 3: Cross multiply
    19,064.49x = 28,596.73 × 5,213.49
  4. Step 4: Simplify right side
    19,064.49x = 149,088,645.62
  5. Step 5: Solve for x
    x = 149,088,645.62/19,064.49
  6. Step 6: Final answer
    x = 7,820.23

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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.