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Finding the Fourth Proportional to 35,675.40, 53,496.90 and 13,481.40

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Solution

The fourth proportional to 35,675.40, 53,496.90 and 13,481.40 is: 20,215.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,675.40 : 53,496.90 = 13,481.40 : x
  2. Step 2: Convert to fraction form
    35,675.40/53,496.90 = 13,481.40/x
  3. Step 3: Cross multiply
    35,675.40x = 53,496.90 × 13,481.40
  4. Step 4: Simplify right side
    35,675.40x = 721,213,107.66
  5. Step 5: Solve for x
    x = 721,213,107.66/35,675.40
  6. Step 6: Final answer
    x = 20,215.98

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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.