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Finding the Fourth Proportional to 62,580.48, 86,357.76 and 35,721.92

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Solution

The fourth proportional to 62,580.48, 86,357.76 and 35,721.92 is: 49,294.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,580.48 : 86,357.76 = 35,721.92 : x
  2. Step 2: Convert to fraction form
    62,580.48/86,357.76 = 35,721.92/x
  3. Step 3: Cross multiply
    62,580.48x = 86,357.76 × 35,721.92
  4. Step 4: Simplify right side
    62,580.48x = 3,084,864,994.10
  5. Step 5: Solve for x
    x = 3,084,864,994.10/62,580.48
  6. Step 6: Final answer
    x = 49,294.36

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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.