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Finding the Fourth Proportional to 43,736.80, 65,590.80 and 16,031.20

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Solution

The fourth proportional to 43,736.80, 65,590.80 and 16,031.20 is: 24,041.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,736.80 : 65,590.80 = 16,031.20 : x
  2. Step 2: Convert to fraction form
    43,736.80/65,590.80 = 16,031.20/x
  3. Step 3: Cross multiply
    43,736.80x = 65,590.80 × 16,031.20
  4. Step 4: Simplify right side
    43,736.80x = 1,051,499,232.96
  5. Step 5: Solve for x
    x = 1,051,499,232.96/43,736.80
  6. Step 6: Final answer
    x = 24,041.52

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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.