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Finding the Fourth Proportional to 53,157.75, 79,786.03 and 26,881.35

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Solution

The fourth proportional to 53,157.75, 79,786.03 and 26,881.35 is: 40,347.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,157.75 : 79,786.03 = 26,881.35 : x
  2. Step 2: Convert to fraction form
    53,157.75/79,786.03 = 26,881.35/x
  3. Step 3: Cross multiply
    53,157.75x = 79,786.03 × 26,881.35
  4. Step 4: Simplify right side
    53,157.75x = 2,144,756,197.54
  5. Step 5: Solve for x
    x = 2,144,756,197.54/53,157.75
  6. Step 6: Final answer
    x = 40,347.01

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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.