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Finding the Fourth Proportional to 18,605.14, 25,675.14 and 10,946.44

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Solution

The fourth proportional to 18,605.14, 25,675.14 and 10,946.44 is: 15,106.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,605.14 : 25,675.14 = 10,946.44 : x
  2. Step 2: Convert to fraction form
    18,605.14/25,675.14 = 10,946.44/x
  3. Step 3: Cross multiply
    18,605.14x = 25,675.14 × 10,946.44
  4. Step 4: Simplify right side
    18,605.14x = 281,051,379.50
  5. Step 5: Solve for x
    x = 281,051,379.50/18,605.14
  6. Step 6: Final answer
    x = 15,106.11

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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.