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Finding the Fourth Proportional to 19,052.91, 28,575.05 and 6,740.91

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Solution

The fourth proportional to 19,052.91, 28,575.05 and 6,740.91 is: 10,109.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,052.91 : 28,575.05 = 6,740.91 : x
  2. Step 2: Convert to fraction form
    19,052.91/28,575.05 = 6,740.91/x
  3. Step 3: Cross multiply
    19,052.91x = 28,575.05 × 6,740.91
  4. Step 4: Simplify right side
    19,052.91x = 192,621,806.59
  5. Step 5: Solve for x
    x = 192,621,806.59/19,052.91
  6. Step 6: Final answer
    x = 10,109.84

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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.