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Finding the Fourth Proportional to 33,810.30, 50,715.45 and 15,090.30

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Solution

The fourth proportional to 33,810.30, 50,715.45 and 15,090.30 is: 22,635.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,810.30 : 50,715.45 = 15,090.30 : x
  2. Step 2: Convert to fraction form
    33,810.30/50,715.45 = 15,090.30/x
  3. Step 3: Cross multiply
    33,810.30x = 50,715.45 × 15,090.30
  4. Step 4: Simplify right side
    33,810.30x = 765,311,355.14
  5. Step 5: Solve for x
    x = 765,311,355.14/33,810.30
  6. Step 6: Final answer
    x = 22,635.45

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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.