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Finding the Fourth Proportional to 28,030.96, 38,686.21 and 16,094.04

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Solution

The fourth proportional to 28,030.96, 38,686.21 and 16,094.04 is: 22,211.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,030.96 : 38,686.21 = 16,094.04 : x
  2. Step 2: Convert to fraction form
    28,030.96/38,686.21 = 16,094.04/x
  3. Step 3: Cross multiply
    28,030.96x = 38,686.21 × 16,094.04
  4. Step 4: Simplify right side
    28,030.96x = 622,617,443.49
  5. Step 5: Solve for x
    x = 622,617,443.49/28,030.96
  6. Step 6: Final answer
    x = 22,211.78

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.