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Finding the Fourth Proportional to 30,912.03, 46,372.88 and 9,856.79

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Solution

The fourth proportional to 30,912.03, 46,372.88 and 9,856.79 is: 14,786.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,912.03 : 46,372.88 = 9,856.79 : x
  2. Step 2: Convert to fraction form
    30,912.03/46,372.88 = 9,856.79/x
  3. Step 3: Cross multiply
    30,912.03x = 46,372.88 × 9,856.79
  4. Step 4: Simplify right side
    30,912.03x = 457,087,806.50
  5. Step 5: Solve for x
    x = 457,087,806.50/30,912.03
  6. Step 6: Final answer
    x = 14,786.73

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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.