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Finding the Fourth Proportional to 18,773.97, 28,193.13 and 16,670.34

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Solution

The fourth proportional to 18,773.97, 28,193.13 and 16,670.34 is: 25,034.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,773.97 : 28,193.13 = 16,670.34 : x
  2. Step 2: Convert to fraction form
    18,773.97/28,193.13 = 16,670.34/x
  3. Step 3: Cross multiply
    18,773.97x = 28,193.13 × 16,670.34
  4. Step 4: Simplify right side
    18,773.97x = 469,989,062.76
  5. Step 5: Solve for x
    x = 469,989,062.76/18,773.97
  6. Step 6: Final answer
    x = 25,034.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.