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Finding the Fourth Proportional to 18,773.84, 28,166.08 and 9,402.54

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Solution

The fourth proportional to 18,773.84, 28,166.08 and 9,402.54 is: 14,106.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,773.84 : 28,166.08 = 9,402.54 : x
  2. Step 2: Convert to fraction form
    18,773.84/28,166.08 = 9,402.54/x
  3. Step 3: Cross multiply
    18,773.84x = 28,166.08 × 9,402.54
  4. Step 4: Simplify right side
    18,773.84x = 264,832,693.84
  5. Step 5: Solve for x
    x = 264,832,693.84/18,773.84
  6. Step 6: Final answer
    x = 14,106.47

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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.