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Finding the Fourth Proportional to 18,597.03, 25,662.99 and 10,640.13

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Solution

The fourth proportional to 18,597.03, 25,662.99 and 10,640.13 is: 14,682.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,597.03 : 25,662.99 = 10,640.13 : x
  2. Step 2: Convert to fraction form
    18,597.03/25,662.99 = 10,640.13/x
  3. Step 3: Cross multiply
    18,597.03x = 25,662.99 × 10,640.13
  4. Step 4: Simplify right side
    18,597.03x = 273,057,549.79
  5. Step 5: Solve for x
    x = 273,057,549.79/18,597.03
  6. Step 6: Final answer
    x = 14,682.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.