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Finding the Fourth Proportional to 43,467.84, 65,214.24 and 13,890.24

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Solution

The fourth proportional to 43,467.84, 65,214.24 and 13,890.24 is: 20,839.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,467.84 : 65,214.24 = 13,890.24 : x
  2. Step 2: Convert to fraction form
    43,467.84/65,214.24 = 13,890.24/x
  3. Step 3: Cross multiply
    43,467.84x = 65,214.24 × 13,890.24
  4. Step 4: Simplify right side
    43,467.84x = 905,841,445.02
  5. Step 5: Solve for x
    x = 905,841,445.02/43,467.84
  6. Step 6: Final answer
    x = 20,839.35

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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.