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Finding the Fourth Proportional to 12,248, 18,369.26 and 4,854.12

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Solution

The fourth proportional to 12,248, 18,369.26 and 4,854.12 is: 7,280.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,248 : 18,369.26 = 4,854.12 : x
  2. Step 2: Convert to fraction form
    12,248/18,369.26 = 4,854.12/x
  3. Step 3: Cross multiply
    12,248x = 18,369.26 × 4,854.12
  4. Step 4: Simplify right side
    12,248x = 89,166,592.35
  5. Step 5: Solve for x
    x = 89,166,592.35/12,248
  6. Step 6: Final answer
    x = 7,280.09

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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.