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Finding the Fourth Proportional to 62,971.48, 86,901.78 and 34,291.99

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Solution

The fourth proportional to 62,971.48, 86,901.78 and 34,291.99 is: 47,323.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,971.48 : 86,901.78 = 34,291.99 : x
  2. Step 2: Convert to fraction form
    62,971.48/86,901.78 = 34,291.99/x
  3. Step 3: Cross multiply
    62,971.48x = 86,901.78 × 34,291.99
  4. Step 4: Simplify right side
    62,971.48x = 2,980,034,970.74
  5. Step 5: Solve for x
    x = 2,980,034,970.74/62,971.48
  6. Step 6: Final answer
    x = 47,323.57

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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.