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Finding the Fourth Proportional to 40,605.70, 60,908.55 and 14,313.10

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Solution

The fourth proportional to 40,605.70, 60,908.55 and 14,313.10 is: 21,469.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,605.70 : 60,908.55 = 14,313.10 : x
  2. Step 2: Convert to fraction form
    40,605.70/60,908.55 = 14,313.10/x
  3. Step 3: Cross multiply
    40,605.70x = 60,908.55 × 14,313.10
  4. Step 4: Simplify right side
    40,605.70x = 871,790,167.01
  5. Step 5: Solve for x
    x = 871,790,167.01/40,605.70
  6. Step 6: Final answer
    x = 21,469.65

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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.