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Finding the Fourth Proportional to 43,828.40, 65,645.40 and 26,332.40

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Solution

The fourth proportional to 43,828.40, 65,645.40 and 26,332.40 is: 39,440.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,828.40 : 65,645.40 = 26,332.40 : x
  2. Step 2: Convert to fraction form
    43,828.40/65,645.40 = 26,332.40/x
  3. Step 3: Cross multiply
    43,828.40x = 65,645.40 × 26,332.40
  4. Step 4: Simplify right side
    43,828.40x = 1,728,600,930.96
  5. Step 5: Solve for x
    x = 1,728,600,930.96/43,828.40
  6. Step 6: Final answer
    x = 39,440.20

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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.