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Finding the Fourth Proportional to 28,876.35, 39,850.02 and 16,948.29

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Solution

The fourth proportional to 28,876.35, 39,850.02 and 16,948.29 is: 23,389.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,876.35 : 39,850.02 = 16,948.29 : x
  2. Step 2: Convert to fraction form
    28,876.35/39,850.02 = 16,948.29/x
  3. Step 3: Cross multiply
    28,876.35x = 39,850.02 × 16,948.29
  4. Step 4: Simplify right side
    28,876.35x = 675,389,695.47
  5. Step 5: Solve for x
    x = 675,389,695.47/28,876.35
  6. Step 6: Final answer
    x = 23,389.03

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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.