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Finding the Fourth Proportional to 43,855.02, 65,753.61 and 15,760.98

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Solution

The fourth proportional to 43,855.02, 65,753.61 and 15,760.98 is: 23,631.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,855.02 : 65,753.61 = 15,760.98 : x
  2. Step 2: Convert to fraction form
    43,855.02/65,753.61 = 15,760.98/x
  3. Step 3: Cross multiply
    43,855.02x = 65,753.61 × 15,760.98
  4. Step 4: Simplify right side
    43,855.02x = 1,036,341,332.14
  5. Step 5: Solve for x
    x = 1,036,341,332.14/43,855.02
  6. Step 6: Final answer
    x = 23,631.08

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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.