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Finding the Fourth Proportional to 43,354.67, 65,035.05 and 18,391.89

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Solution

The fourth proportional to 43,354.67, 65,035.05 and 18,391.89 is: 27,589.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,354.67 : 65,035.05 = 18,391.89 : x
  2. Step 2: Convert to fraction form
    43,354.67/65,035.05 = 18,391.89/x
  3. Step 3: Cross multiply
    43,354.67x = 65,035.05 × 18,391.89
  4. Step 4: Simplify right side
    43,354.67x = 1,196,117,485.74
  5. Step 5: Solve for x
    x = 1,196,117,485.74/43,354.67
  6. Step 6: Final answer
    x = 27,589.13

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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.