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Finding the Fourth Proportional to 8,771.52, 13,158 and 4,384.92

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Solution

The fourth proportional to 8,771.52, 13,158 and 4,384.92 is: 6,577.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,771.52 : 13,158 = 4,384.92 : x
  2. Step 2: Convert to fraction form
    8,771.52/13,158 = 4,384.92/x
  3. Step 3: Cross multiply
    8,771.52x = 13,158 × 4,384.92
  4. Step 4: Simplify right side
    8,771.52x = 57,696,777.36
  5. Step 5: Solve for x
    x = 57,696,777.36/8,771.52
  6. Step 6: Final answer
    x = 6,577.74

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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.