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Finding the Fourth Proportional to 33,185.79, 45,795.87 and 18,281.79

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Solution

The fourth proportional to 33,185.79, 45,795.87 and 18,281.79 is: 25,228.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,185.79 : 45,795.87 = 18,281.79 : x
  2. Step 2: Convert to fraction form
    33,185.79/45,795.87 = 18,281.79/x
  3. Step 3: Cross multiply
    33,185.79x = 45,795.87 × 18,281.79
  4. Step 4: Simplify right side
    33,185.79x = 837,230,478.21
  5. Step 5: Solve for x
    x = 837,230,478.21/33,185.79
  6. Step 6: Final answer
    x = 25,228.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.