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Finding the Fourth Proportional to 19,064.92, 28,596.88 and 5,213.92

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Solution

The fourth proportional to 19,064.92, 28,596.88 and 5,213.92 is: 7,820.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,064.92 : 28,596.88 = 5,213.92 : x
  2. Step 2: Convert to fraction form
    19,064.92/28,596.88 = 5,213.92/x
  3. Step 3: Cross multiply
    19,064.92x = 28,596.88 × 5,213.92
  4. Step 4: Simplify right side
    19,064.92x = 149,101,844.57
  5. Step 5: Solve for x
    x = 149,101,844.57/19,064.92
  6. Step 6: Final answer
    x = 7,820.74

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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.