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Finding the Fourth Proportional to 18,800.50, 25,940.11 and 10,417.00

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Solution

The fourth proportional to 18,800.50, 25,940.11 and 10,417.00 is: 14,372.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,800.50 : 25,940.11 = 10,417.00 : x
  2. Step 2: Convert to fraction form
    18,800.50/25,940.11 = 10,417.00/x
  3. Step 3: Cross multiply
    18,800.50x = 25,940.11 × 10,417.00
  4. Step 4: Simplify right side
    18,800.50x = 270,217,996.17
  5. Step 5: Solve for x
    x = 270,217,996.17/18,800.50
  6. Step 6: Final answer
    x = 14,372.92

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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.