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Finding the Fourth Proportional to 62,970, 86,898.60 and 34,675.62

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Solution

The fourth proportional to 62,970, 86,898.60 and 34,675.62 is: 47,852.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,970 : 86,898.60 = 34,675.62 : x
  2. Step 2: Convert to fraction form
    62,970/86,898.60 = 34,675.62/x
  3. Step 3: Cross multiply
    62,970x = 86,898.60 × 34,675.62
  4. Step 4: Simplify right side
    62,970x = 3,013,262,832.13
  5. Step 5: Solve for x
    x = 3,013,262,832.13/62,970
  6. Step 6: Final answer
    x = 47,852.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.