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Finding the Fourth Proportional to 53,052.80, 79,529.72 and 36,420.66

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Solution

The fourth proportional to 53,052.80, 79,529.72 and 36,420.66 is: 54,597.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,052.80 : 79,529.72 = 36,420.66 : x
  2. Step 2: Convert to fraction form
    53,052.80/79,529.72 = 36,420.66/x
  3. Step 3: Cross multiply
    53,052.80x = 79,529.72 × 36,420.66
  4. Step 4: Simplify right side
    53,052.80x = 2,896,524,709.91
  5. Step 5: Solve for x
    x = 2,896,524,709.91/53,052.80
  6. Step 6: Final answer
    x = 54,597.02

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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.