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Finding the Fourth Proportional to 57,664.80, 79,578 and 33,805.60

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Solution

The fourth proportional to 57,664.80, 79,578 and 33,805.60 is: 46,652.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,664.80 : 79,578 = 33,805.60 : x
  2. Step 2: Convert to fraction form
    57,664.80/79,578 = 33,805.60/x
  3. Step 3: Cross multiply
    57,664.80x = 79,578 × 33,805.60
  4. Step 4: Simplify right side
    57,664.80x = 2,690,182,036.80
  5. Step 5: Solve for x
    x = 2,690,182,036.80/57,664.80
  6. Step 6: Final answer
    x = 46,652.07

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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.