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Finding the Fourth Proportional to 45,846.88, 68,762.94 and 12,559.16

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Solution

The fourth proportional to 45,846.88, 68,762.94 and 12,559.16 is: 18,836.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,846.88 : 68,762.94 = 12,559.16 : x
  2. Step 2: Convert to fraction form
    45,846.88/68,762.94 = 12,559.16/x
  3. Step 3: Cross multiply
    45,846.88x = 68,762.94 × 12,559.16
  4. Step 4: Simplify right side
    45,846.88x = 863,604,765.53
  5. Step 5: Solve for x
    x = 863,604,765.53/45,846.88
  6. Step 6: Final answer
    x = 18,836.72

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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.