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Finding the Fourth Proportional to 19,064.86, 28,584.52 and 7,364.41

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Solution

The fourth proportional to 19,064.86, 28,584.52 and 7,364.41 is: 11,041.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,064.86 : 28,584.52 = 7,364.41 : x
  2. Step 2: Convert to fraction form
    19,064.86/28,584.52 = 7,364.41/x
  3. Step 3: Cross multiply
    19,064.86x = 28,584.52 × 7,364.41
  4. Step 4: Simplify right side
    19,064.86x = 210,508,035.06
  5. Step 5: Solve for x
    x = 210,508,035.06/19,064.86
  6. Step 6: Final answer
    x = 11,041.68

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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.