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Finding the Fourth Proportional to 45,011.16, 67,523.22 and 13,839.12

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Solution

The fourth proportional to 45,011.16, 67,523.22 and 13,839.12 is: 20,760.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,011.16 : 67,523.22 = 13,839.12 : x
  2. Step 2: Convert to fraction form
    45,011.16/67,523.22 = 13,839.12/x
  3. Step 3: Cross multiply
    45,011.16x = 67,523.22 × 13,839.12
  4. Step 4: Simplify right side
    45,011.16x = 934,461,944.37
  5. Step 5: Solve for x
    x = 934,461,944.37/45,011.16
  6. Step 6: Final answer
    x = 20,760.67

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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.