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Finding the Fourth Proportional to 43,504.64, 65,266.56 and 13,924.88

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Solution

The fourth proportional to 43,504.64, 65,266.56 and 13,924.88 is: 20,890.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,504.64 : 65,266.56 = 13,924.88 : x
  2. Step 2: Convert to fraction form
    43,504.64/65,266.56 = 13,924.88/x
  3. Step 3: Cross multiply
    43,504.64x = 65,266.56 × 13,924.88
  4. Step 4: Simplify right side
    43,504.64x = 908,829,016.01
  5. Step 5: Solve for x
    x = 908,829,016.01/43,504.64
  6. Step 6: Final answer
    x = 20,890.39

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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.