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Finding the Fourth Proportional to 33,485.50, 46,209.99 and 18,581.50

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Solution

The fourth proportional to 33,485.50, 46,209.99 and 18,581.50 is: 25,642.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,485.50 : 46,209.99 = 18,581.50 : x
  2. Step 2: Convert to fraction form
    33,485.50/46,209.99 = 18,581.50/x
  3. Step 3: Cross multiply
    33,485.50x = 46,209.99 × 18,581.50
  4. Step 4: Simplify right side
    33,485.50x = 858,650,929.19
  5. Step 5: Solve for x
    x = 858,650,929.19/33,485.50
  6. Step 6: Final answer
    x = 25,642.47

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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.