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Finding the Fourth Proportional to 28,263, 38,996.42 and 16,930.38

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Solution

The fourth proportional to 28,263, 38,996.42 and 16,930.38 is: 23,360.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,263 : 38,996.42 = 16,930.38 : x
  2. Step 2: Convert to fraction form
    28,263/38,996.42 = 16,930.38/x
  3. Step 3: Cross multiply
    28,263x = 38,996.42 × 16,930.38
  4. Step 4: Simplify right side
    28,263x = 660,224,124.59
  5. Step 5: Solve for x
    x = 660,224,124.59/28,263
  6. Step 6: Final answer
    x = 23,360.02

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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.