Home / 43,518.11-65,280.64-18,558.38

Finding the Fourth Proportional to 43,518.11, 65,280.64 and 18,558.38

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Solution

The fourth proportional to 43,518.11, 65,280.64 and 18,558.38 is: 27,839.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,518.11 : 65,280.64 = 18,558.38 : x
  2. Step 2: Convert to fraction form
    43,518.11/65,280.64 = 18,558.38/x
  3. Step 3: Cross multiply
    43,518.11x = 65,280.64 × 18,558.38
  4. Step 4: Simplify right side
    43,518.11x = 1,211,503,226.12
  5. Step 5: Solve for x
    x = 1,211,503,226.12/43,518.11
  6. Step 6: Final answer
    x = 27,839.06

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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.