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Finding the Fourth Proportional to 53,595.40, 80,401.02 and 18,525.64

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Solution

The fourth proportional to 53,595.40, 80,401.02 and 18,525.64 is: 27,791.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,595.40 : 80,401.02 = 18,525.64 : x
  2. Step 2: Convert to fraction form
    53,595.40/80,401.02 = 18,525.64/x
  3. Step 3: Cross multiply
    53,595.40x = 80,401.02 × 18,525.64
  4. Step 4: Simplify right side
    53,595.40x = 1,489,480,352.15
  5. Step 5: Solve for x
    x = 1,489,480,352.15/53,595.40
  6. Step 6: Final answer
    x = 27,791.20

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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.