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Finding the Fourth Proportional to 43,687.72, 65,535.54 and 17,386.48

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Solution

The fourth proportional to 43,687.72, 65,535.54 and 17,386.48 is: 26,081.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,687.72 : 65,535.54 = 17,386.48 : x
  2. Step 2: Convert to fraction form
    43,687.72/65,535.54 = 17,386.48/x
  3. Step 3: Cross multiply
    43,687.72x = 65,535.54 × 17,386.48
  4. Step 4: Simplify right side
    43,687.72x = 1,139,432,355.50
  5. Step 5: Solve for x
    x = 1,139,432,355.50/43,687.72
  6. Step 6: Final answer
    x = 26,081.30

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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.