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Finding the Fourth Proportional to 18,603.01, 25,672.74 and 10,647.80

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Solution

The fourth proportional to 18,603.01, 25,672.74 and 10,647.80 is: 14,694.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,603.01 : 25,672.74 = 10,647.80 : x
  2. Step 2: Convert to fraction form
    18,603.01/25,672.74 = 10,647.80/x
  3. Step 3: Cross multiply
    18,603.01x = 25,672.74 × 10,647.80
  4. Step 4: Simplify right side
    18,603.01x = 273,358,128.95
  5. Step 5: Solve for x
    x = 273,358,128.95/18,603.01
  6. Step 6: Final answer
    x = 14,694.29

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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.