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Finding the Fourth Proportional to 18,769.08, 25,900.93 and 10,271.17

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Solution

The fourth proportional to 18,769.08, 25,900.93 and 10,271.17 is: 14,173.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,769.08 : 25,900.93 = 10,271.17 : x
  2. Step 2: Convert to fraction form
    18,769.08/25,900.93 = 10,271.17/x
  3. Step 3: Cross multiply
    18,769.08x = 25,900.93 × 10,271.17
  4. Step 4: Simplify right side
    18,769.08x = 266,032,674.33
  5. Step 5: Solve for x
    x = 266,032,674.33/18,769.08
  6. Step 6: Final answer
    x = 14,173.99

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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.