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Finding the Fourth Proportional to 18,607.88, 27,916.37 and 9,252.30

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Solution

The fourth proportional to 18,607.88, 27,916.37 and 9,252.30 is: 13,880.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,607.88 : 27,916.37 = 9,252.30 : x
  2. Step 2: Convert to fraction form
    18,607.88/27,916.37 = 9,252.30/x
  3. Step 3: Cross multiply
    18,607.88x = 27,916.37 × 9,252.30
  4. Step 4: Simplify right side
    18,607.88x = 258,290,583.89
  5. Step 5: Solve for x
    x = 258,290,583.89/18,607.88
  6. Step 6: Final answer
    x = 13,880.71

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1.5x scale

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.