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Finding the Fourth Proportional to 18,827.58, 28,241.91 and 10,502.94

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Solution

The fourth proportional to 18,827.58, 28,241.91 and 10,502.94 is: 15,754.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,827.58 : 28,241.91 = 10,502.94 : x
  2. Step 2: Convert to fraction form
    18,827.58/28,241.91 = 10,502.94/x
  3. Step 3: Cross multiply
    18,827.58x = 28,241.91 × 10,502.94
  4. Step 4: Simplify right side
    18,827.58x = 296,623,086.22
  5. Step 5: Solve for x
    x = 296,623,086.22/18,827.58
  6. Step 6: Final answer
    x = 15,754.71

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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.