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Finding the Fourth Proportional to 28,893.92, 39,880.86 and 16,325.96

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Solution

The fourth proportional to 28,893.92, 39,880.86 and 16,325.96 is: 22,533.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,893.92 : 39,880.86 = 16,325.96 : x
  2. Step 2: Convert to fraction form
    28,893.92/39,880.86 = 16,325.96/x
  3. Step 3: Cross multiply
    28,893.92x = 39,880.86 × 16,325.96
  4. Step 4: Simplify right side
    28,893.92x = 651,093,325.13
  5. Step 5: Solve for x
    x = 651,093,325.13/28,893.92
  6. Step 6: Final answer
    x = 22,533.92

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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.