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Finding the Fourth Proportional to 39,369.96, 54,315.90 and 25,230.60

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Solution

The fourth proportional to 39,369.96, 54,315.90 and 25,230.60 is: 34,808.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,369.96 : 54,315.90 = 25,230.60 : x
  2. Step 2: Convert to fraction form
    39,369.96/54,315.90 = 25,230.60/x
  3. Step 3: Cross multiply
    39,369.96x = 54,315.90 × 25,230.60
  4. Step 4: Simplify right side
    39,369.96x = 1,370,422,746.54
  5. Step 5: Solve for x
    x = 1,370,422,746.54/39,369.96
  6. Step 6: Final answer
    x = 34,808.84

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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.