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Finding the Fourth Proportional to 18,768.58, 25,900.24 and 10,270.67

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Solution

The fourth proportional to 18,768.58, 25,900.24 and 10,270.67 is: 14,173.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,768.58 : 25,900.24 = 10,270.67 : x
  2. Step 2: Convert to fraction form
    18,768.58/25,900.24 = 10,270.67/x
  3. Step 3: Cross multiply
    18,768.58x = 25,900.24 × 10,270.67
  4. Step 4: Simplify right side
    18,768.58x = 266,012,637.11
  5. Step 5: Solve for x
    x = 266,012,637.11/18,768.58
  6. Step 6: Final answer
    x = 14,173.30

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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.