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Finding the Fourth Proportional to 45,392.82, 68,089.23 and 12,113.01

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Solution

The fourth proportional to 45,392.82, 68,089.23 and 12,113.01 is: 18,169.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,392.82 : 68,089.23 = 12,113.01 : x
  2. Step 2: Convert to fraction form
    45,392.82/68,089.23 = 12,113.01/x
  3. Step 3: Cross multiply
    45,392.82x = 68,089.23 × 12,113.01
  4. Step 4: Simplify right side
    45,392.82x = 824,765,523.88
  5. Step 5: Solve for x
    x = 824,765,523.88/45,392.82
  6. Step 6: Final answer
    x = 18,169.52

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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.