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Finding the Fourth Proportional to 28,014.01, 38,665.01 and 16,085.54

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Solution

The fourth proportional to 28,014.01, 38,665.01 and 16,085.54 is: 22,201.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,014.01 : 38,665.01 = 16,085.54 : x
  2. Step 2: Convert to fraction form
    28,014.01/38,665.01 = 16,085.54/x
  3. Step 3: Cross multiply
    28,014.01x = 38,665.01 × 16,085.54
  4. Step 4: Simplify right side
    28,014.01x = 621,947,564.96
  5. Step 5: Solve for x
    x = 621,947,564.96/28,014.01
  6. Step 6: Final answer
    x = 22,201.30

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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.