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Finding the Fourth Proportional to 38,412.60, 55,542.75 and 38,412.60

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Solution

The fourth proportional to 38,412.60, 55,542.75 and 38,412.60 is: 55,542.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,412.60 : 55,542.75 = 38,412.60 : x
  2. Step 2: Convert to fraction form
    38,412.60/55,542.75 = 38,412.60/x
  3. Step 3: Cross multiply
    38,412.60x = 55,542.75 × 38,412.60
  4. Step 4: Simplify right side
    38,412.60x = 2,133,541,438.65
  5. Step 5: Solve for x
    x = 2,133,541,438.65/38,412.60
  6. Step 6: Final answer
    x = 55,542.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.