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Finding the Fourth Proportional to 38,866, 58,308.84 and 11,164

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Solution

The fourth proportional to 38,866, 58,308.84 and 11,164 is: 16,748.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,866 : 58,308.84 = 11,164 : x
  2. Step 2: Convert to fraction form
    38,866/58,308.84 = 11,164/x
  3. Step 3: Cross multiply
    38,866x = 58,308.84 × 11,164
  4. Step 4: Simplify right side
    38,866x = 650,959,889.76
  5. Step 5: Solve for x
    x = 650,959,889.76/38,866
  6. Step 6: Final answer
    x = 16,748.83

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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.