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Finding the Fourth Proportional to 18,801.99, 28,205.82 and 5,652.99

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Solution

The fourth proportional to 18,801.99, 28,205.82 and 5,652.99 is: 8,480.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,801.99 : 28,205.82 = 5,652.99 : x
  2. Step 2: Convert to fraction form
    18,801.99/28,205.82 = 5,652.99/x
  3. Step 3: Cross multiply
    18,801.99x = 28,205.82 × 5,652.99
  4. Step 4: Simplify right side
    18,801.99x = 159,447,218.40
  5. Step 5: Solve for x
    x = 159,447,218.40/18,801.99
  6. Step 6: Final answer
    x = 8,480.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.