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Finding the Fourth Proportional to 28,193.73, 38,911.49 and 16,254.73

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Solution

The fourth proportional to 28,193.73, 38,911.49 and 16,254.73 is: 22,433.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,193.73 : 38,911.49 = 16,254.73 : x
  2. Step 2: Convert to fraction form
    28,193.73/38,911.49 = 16,254.73/x
  3. Step 3: Cross multiply
    28,193.73x = 38,911.49 × 16,254.73
  4. Step 4: Simplify right side
    28,193.73x = 632,495,763.85
  5. Step 5: Solve for x
    x = 632,495,763.85/28,193.73
  6. Step 6: Final answer
    x = 22,433.92

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Double scale
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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.