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Finding the Fourth Proportional to 35,608.99, 53,425.82 and 13,428.73

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Solution

The fourth proportional to 35,608.99, 53,425.82 and 13,428.73 is: 20,147.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,608.99 : 53,425.82 = 13,428.73 : x
  2. Step 2: Convert to fraction form
    35,608.99/53,425.82 = 13,428.73/x
  3. Step 3: Cross multiply
    35,608.99x = 53,425.82 × 13,428.73
  4. Step 4: Simplify right side
    35,608.99x = 717,440,911.81
  5. Step 5: Solve for x
    x = 717,440,911.81/35,608.99
  6. Step 6: Final answer
    x = 20,147.75

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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.