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Finding the Fourth Proportional to 45,630.54, 68,440.37 and 14,040.54

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Solution

The fourth proportional to 45,630.54, 68,440.37 and 14,040.54 is: 21,059.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,630.54 : 68,440.37 = 14,040.54 : x
  2. Step 2: Convert to fraction form
    45,630.54/68,440.37 = 14,040.54/x
  3. Step 3: Cross multiply
    45,630.54x = 68,440.37 × 14,040.54
  4. Step 4: Simplify right side
    45,630.54x = 960,939,682.40
  5. Step 5: Solve for x
    x = 960,939,682.40/45,630.54
  6. Step 6: Final answer
    x = 21,059.13

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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.