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Finding the Fourth Proportional to 43,508.40, 65,165.40 and 35,732.40

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Solution

The fourth proportional to 43,508.40, 65,165.40 and 35,732.40 is: 53,518.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,508.40 : 65,165.40 = 35,732.40 : x
  2. Step 2: Convert to fraction form
    43,508.40/65,165.40 = 35,732.40/x
  3. Step 3: Cross multiply
    43,508.40x = 65,165.40 × 35,732.40
  4. Step 4: Simplify right side
    43,508.40x = 2,328,516,138.96
  5. Step 5: Solve for x
    x = 2,328,516,138.96/43,508.40
  6. Step 6: Final answer
    x = 53,518.77

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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.