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Finding the Fourth Proportional to 35,290.36, 48,704.57 and 20,184.40

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Solution

The fourth proportional to 35,290.36, 48,704.57 and 20,184.40 is: 27,856.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,290.36 : 48,704.57 = 20,184.40 : x
  2. Step 2: Convert to fraction form
    35,290.36/48,704.57 = 20,184.40/x
  3. Step 3: Cross multiply
    35,290.36x = 48,704.57 × 20,184.40
  4. Step 4: Simplify right side
    35,290.36x = 983,072,522.71
  5. Step 5: Solve for x
    x = 983,072,522.71/35,290.36
  6. Step 6: Final answer
    x = 27,856.69

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.