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Finding the Fourth Proportional to 20,526.88, 30,790.32 and 4,944.50

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Solution

The fourth proportional to 20,526.88, 30,790.32 and 4,944.50 is: 7,416.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,526.88 : 30,790.32 = 4,944.50 : x
  2. Step 2: Convert to fraction form
    20,526.88/30,790.32 = 4,944.50/x
  3. Step 3: Cross multiply
    20,526.88x = 30,790.32 × 4,944.50
  4. Step 4: Simplify right side
    20,526.88x = 152,242,737.24
  5. Step 5: Solve for x
    x = 152,242,737.24/20,526.88
  6. Step 6: Final answer
    x = 7,416.75

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.