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Finding the Fourth Proportional to 62,970.90, 86,893.24 and 35,738.31

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Solution

The fourth proportional to 62,970.90, 86,893.24 and 35,738.31 is: 49,315.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,970.90 : 86,893.24 = 35,738.31 : x
  2. Step 2: Convert to fraction form
    62,970.90/86,893.24 = 35,738.31/x
  3. Step 3: Cross multiply
    62,970.90x = 86,893.24 × 35,738.31
  4. Step 4: Simplify right side
    62,970.90x = 3,105,417,548.02
  5. Step 5: Solve for x
    x = 3,105,417,548.02/62,970.90
  6. Step 6: Final answer
    x = 49,315.12

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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.