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Finding the Fourth Proportional to 25,641.99, 38,469.48 and 7,873.55

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Solution

The fourth proportional to 25,641.99, 38,469.48 and 7,873.55 is: 11,812.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,641.99 : 38,469.48 = 7,873.55 : x
  2. Step 2: Convert to fraction form
    25,641.99/38,469.48 = 7,873.55/x
  3. Step 3: Cross multiply
    25,641.99x = 38,469.48 × 7,873.55
  4. Step 4: Simplify right side
    25,641.99x = 302,891,181.91
  5. Step 5: Solve for x
    x = 302,891,181.91/25,641.99
  6. Step 6: Final answer
    x = 11,812.31

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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.