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Finding the Fourth Proportional to 33,890.04, 46,770 and 18,784.32

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Solution

The fourth proportional to 33,890.04, 46,770 and 18,784.32 is: 25,923.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,890.04 : 46,770 = 18,784.32 : x
  2. Step 2: Convert to fraction form
    33,890.04/46,770 = 18,784.32/x
  3. Step 3: Cross multiply
    33,890.04x = 46,770 × 18,784.32
  4. Step 4: Simplify right side
    33,890.04x = 878,542,646.40
  5. Step 5: Solve for x
    x = 878,542,646.40/33,890.04
  6. Step 6: Final answer
    x = 25,923.33

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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.