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Finding the Fourth Proportional to 53,981.98, 74,525.63 and 35,863.80

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Solution

The fourth proportional to 53,981.98, 74,525.63 and 35,863.80 is: 49,512.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,981.98 : 74,525.63 = 35,863.80 : x
  2. Step 2: Convert to fraction form
    53,981.98/74,525.63 = 35,863.80/x
  3. Step 3: Cross multiply
    53,981.98x = 74,525.63 × 35,863.80
  4. Step 4: Simplify right side
    53,981.98x = 2,672,772,289.19
  5. Step 5: Solve for x
    x = 2,672,772,289.19/53,981.98
  6. Step 6: Final answer
    x = 49,512.31

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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.