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Finding the Fourth Proportional to 30,375.76, 45,563.36 and 9,599.28

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Solution

The fourth proportional to 30,375.76, 45,563.36 and 9,599.28 is: 14,398.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,375.76 : 45,563.36 = 9,599.28 : x
  2. Step 2: Convert to fraction form
    30,375.76/45,563.36 = 9,599.28/x
  3. Step 3: Cross multiply
    30,375.76x = 45,563.36 × 9,599.28
  4. Step 4: Simplify right side
    30,375.76x = 437,375,450.38
  5. Step 5: Solve for x
    x = 437,375,450.38/30,375.76
  6. Step 6: Final answer
    x = 14,398.83

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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.