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Finding the Fourth Proportional to 43,551.72, 65,333.36 and 13,959.72

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Solution

The fourth proportional to 43,551.72, 65,333.36 and 13,959.72 is: 20,941.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,551.72 : 65,333.36 = 13,959.72 : x
  2. Step 2: Convert to fraction form
    43,551.72/65,333.36 = 13,959.72/x
  3. Step 3: Cross multiply
    43,551.72x = 65,333.36 × 13,959.72
  4. Step 4: Simplify right side
    43,551.72x = 912,035,412.26
  5. Step 5: Solve for x
    x = 912,035,412.26/43,551.72
  6. Step 6: Final answer
    x = 20,941.43

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1.5x scale

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.