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Finding the Fourth Proportional to 33,191.79, 45,804.69 and 18,287.79

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Solution

The fourth proportional to 33,191.79, 45,804.69 and 18,287.79 is: 25,237.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,191.79 : 45,804.69 = 18,287.79 : x
  2. Step 2: Convert to fraction form
    33,191.79/45,804.69 = 18,287.79/x
  3. Step 3: Cross multiply
    33,191.79x = 45,804.69 × 18,287.79
  4. Step 4: Simplify right side
    33,191.79x = 837,666,551.74
  5. Step 5: Solve for x
    x = 837,666,551.74/33,191.79
  6. Step 6: Final answer
    x = 25,237.16

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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.