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Finding the Fourth Proportional to 25,475.94, 38,214.45 and 7,945.92

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Solution

The fourth proportional to 25,475.94, 38,214.45 and 7,945.92 is: 11,919.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,475.94 : 38,214.45 = 7,945.92 : x
  2. Step 2: Convert to fraction form
    25,475.94/38,214.45 = 7,945.92/x
  3. Step 3: Cross multiply
    25,475.94x = 38,214.45 × 7,945.92
  4. Step 4: Simplify right side
    25,475.94x = 303,648,962.54
  5. Step 5: Solve for x
    x = 303,648,962.54/25,475.94
  6. Step 6: Final answer
    x = 11,919.05

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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.