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Finding the Fourth Proportional to 43,183.67, 64,777.82 and 13,603.82

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Solution

The fourth proportional to 43,183.67, 64,777.82 and 13,603.82 is: 20,406.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,183.67 : 64,777.82 = 13,603.82 : x
  2. Step 2: Convert to fraction form
    43,183.67/64,777.82 = 13,603.82/x
  3. Step 3: Cross multiply
    43,183.67x = 64,777.82 × 13,603.82
  4. Step 4: Simplify right side
    43,183.67x = 881,225,411.36
  5. Step 5: Solve for x
    x = 881,225,411.36/43,183.67
  6. Step 6: Final answer
    x = 20,406.45

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1.5x scale

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.