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Finding the Fourth Proportional to 43,483.48, 65,243.79 and 18,535.29

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Solution

The fourth proportional to 43,483.48, 65,243.79 and 18,535.29 is: 27,810.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,483.48 : 65,243.79 = 18,535.29 : x
  2. Step 2: Convert to fraction form
    43,483.48/65,243.79 = 18,535.29/x
  3. Step 3: Cross multiply
    43,483.48x = 65,243.79 × 18,535.29
  4. Step 4: Simplify right side
    43,483.48x = 1,209,312,568.35
  5. Step 5: Solve for x
    x = 1,209,312,568.35/43,483.48
  6. Step 6: Final answer
    x = 27,810.85

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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.