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Finding the Fourth Proportional to 28,032.86, 38,694.72 and 16,705.91

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Solution

The fourth proportional to 28,032.86, 38,694.72 and 16,705.91 is: 23,059.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,032.86 : 38,694.72 = 16,705.91 : x
  2. Step 2: Convert to fraction form
    28,032.86/38,694.72 = 16,705.91/x
  3. Step 3: Cross multiply
    28,032.86x = 38,694.72 × 16,705.91
  4. Step 4: Simplify right side
    28,032.86x = 646,430,316.32
  5. Step 5: Solve for x
    x = 646,430,316.32/28,032.86
  6. Step 6: Final answer
    x = 23,059.74

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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.