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Finding the Fourth Proportional to 19,063, 28,596.50 and 5,212

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Solution

The fourth proportional to 19,063, 28,596.50 and 5,212 is: 7,818.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,063 : 28,596.50 = 5,212 : x
  2. Step 2: Convert to fraction form
    19,063/28,596.50 = 5,212/x
  3. Step 3: Cross multiply
    19,063x = 28,596.50 × 5,212
  4. Step 4: Simplify right side
    19,063x = 149,044,958
  5. Step 5: Solve for x
    x = 149,044,958/19,063
  6. Step 6: Final answer
    x = 7,818.55

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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.