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Finding the Fourth Proportional to 19,325.34, 28,984.52 and 8,792.88

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Solution

The fourth proportional to 19,325.34, 28,984.52 and 8,792.88 is: 13,187.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,325.34 : 28,984.52 = 8,792.88 : x
  2. Step 2: Convert to fraction form
    19,325.34/28,984.52 = 8,792.88/x
  3. Step 3: Cross multiply
    19,325.34x = 28,984.52 × 8,792.88
  4. Step 4: Simplify right side
    19,325.34x = 254,857,406.22
  5. Step 5: Solve for x
    x = 254,857,406.22/19,325.34
  6. Step 6: Final answer
    x = 13,187.73

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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.