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Finding the Fourth Proportional to 30,894.98, 46,344.90 and 12,173.72

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Solution

The fourth proportional to 30,894.98, 46,344.90 and 12,173.72 is: 18,261.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,894.98 : 46,344.90 = 12,173.72 : x
  2. Step 2: Convert to fraction form
    30,894.98/46,344.90 = 12,173.72/x
  3. Step 3: Cross multiply
    30,894.98x = 46,344.90 × 12,173.72
  4. Step 4: Simplify right side
    30,894.98x = 564,189,836.03
  5. Step 5: Solve for x
    x = 564,189,836.03/30,894.98
  6. Step 6: Final answer
    x = 18,261.54

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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.