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Finding the Fourth Proportional to 38,405.80, 57,608.70 and 23,566.60

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Solution

The fourth proportional to 38,405.80, 57,608.70 and 23,566.60 is: 35,349.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,405.80 : 57,608.70 = 23,566.60 : x
  2. Step 2: Convert to fraction form
    38,405.80/57,608.70 = 23,566.60/x
  3. Step 3: Cross multiply
    38,405.80x = 57,608.70 × 23,566.60
  4. Step 4: Simplify right side
    38,405.80x = 1,357,641,189.42
  5. Step 5: Solve for x
    x = 1,357,641,189.42/38,405.80
  6. Step 6: Final answer
    x = 35,349.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.