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Finding the Fourth Proportional to 15,311.56, 22,965.72 and 4,922.50

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Solution

The fourth proportional to 15,311.56, 22,965.72 and 4,922.50 is: 7,383.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,311.56 : 22,965.72 = 4,922.50 : x
  2. Step 2: Convert to fraction form
    15,311.56/22,965.72 = 4,922.50/x
  3. Step 3: Cross multiply
    15,311.56x = 22,965.72 × 4,922.50
  4. Step 4: Simplify right side
    15,311.56x = 113,048,756.70
  5. Step 5: Solve for x
    x = 113,048,756.70/15,311.56
  6. Step 6: Final answer
    x = 7,383.23

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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.