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Finding the Fourth Proportional to 43,646.55, 65,468.53 and 12,058.51

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Solution

The fourth proportional to 43,646.55, 65,468.53 and 12,058.51 is: 18,087.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,646.55 : 65,468.53 = 12,058.51 : x
  2. Step 2: Convert to fraction form
    43,646.55/65,468.53 = 12,058.51/x
  3. Step 3: Cross multiply
    43,646.55x = 65,468.53 × 12,058.51
  4. Step 4: Simplify right side
    43,646.55x = 789,452,923.69
  5. Step 5: Solve for x
    x = 789,452,923.69/43,646.55
  6. Step 6: Final answer
    x = 18,087.41

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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.