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Finding the Fourth Proportional to 18,453.50, 25,465.83 and 11,001.50

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Solution

The fourth proportional to 18,453.50, 25,465.83 and 11,001.50 is: 15,182.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,453.50 : 25,465.83 = 11,001.50 : x
  2. Step 2: Convert to fraction form
    18,453.50/25,465.83 = 11,001.50/x
  3. Step 3: Cross multiply
    18,453.50x = 25,465.83 × 11,001.50
  4. Step 4: Simplify right side
    18,453.50x = 280,162,328.75
  5. Step 5: Solve for x
    x = 280,162,328.75/18,453.50
  6. Step 6: Final answer
    x = 15,182.07

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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.