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Finding the Fourth Proportional to 38,889.50, 58,342.89 and 14,265.50

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Solution

The fourth proportional to 38,889.50, 58,342.89 and 14,265.50 is: 21,401.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,889.50 : 58,342.89 = 14,265.50 : x
  2. Step 2: Convert to fraction form
    38,889.50/58,342.89 = 14,265.50/x
  3. Step 3: Cross multiply
    38,889.50x = 58,342.89 × 14,265.50
  4. Step 4: Simplify right side
    38,889.50x = 832,290,497.30
  5. Step 5: Solve for x
    x = 832,290,497.30/38,889.50
  6. Step 6: Final answer
    x = 21,401.42

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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.