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Finding the Fourth Proportional to 74,430.93, 111,580.77 and 27,651

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Solution

The fourth proportional to 74,430.93, 111,580.77 and 27,651 is: 41,452.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,430.93 : 111,580.77 = 27,651 : x
  2. Step 2: Convert to fraction form
    74,430.93/111,580.77 = 27,651/x
  3. Step 3: Cross multiply
    74,430.93x = 111,580.77 × 27,651
  4. Step 4: Simplify right side
    74,430.93x = 3,085,319,871.27
  5. Step 5: Solve for x
    x = 3,085,319,871.27/74,430.93
  6. Step 6: Final answer
    x = 41,452.12

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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.