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Finding the Fourth Proportional to 33,681.60, 46,479.60 and 18,777.60

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Solution

The fourth proportional to 33,681.60, 46,479.60 and 18,777.60 is: 25,912.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,681.60 : 46,479.60 = 18,777.60 : x
  2. Step 2: Convert to fraction form
    33,681.60/46,479.60 = 18,777.60/x
  3. Step 3: Cross multiply
    33,681.60x = 46,479.60 × 18,777.60
  4. Step 4: Simplify right side
    33,681.60x = 872,775,336.96
  5. Step 5: Solve for x
    x = 872,775,336.96/33,681.60
  6. Step 6: Final answer
    x = 25,912.53

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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.