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Finding the Fourth Proportional to 62,358, 93,537.81 and 20,805

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Solution

The fourth proportional to 62,358, 93,537.81 and 20,805 is: 31,207.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,358 : 93,537.81 = 20,805 : x
  2. Step 2: Convert to fraction form
    62,358/93,537.81 = 20,805/x
  3. Step 3: Cross multiply
    62,358x = 93,537.81 × 20,805
  4. Step 4: Simplify right side
    62,358x = 1,946,054,137.05
  5. Step 5: Solve for x
    x = 1,946,054,137.05/62,358
  6. Step 6: Final answer
    x = 31,207.77

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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.