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Finding the Fourth Proportional to 25,475.44, 38,214.08 and 7,946.64

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Solution

The fourth proportional to 25,475.44, 38,214.08 and 7,946.64 is: 11,920.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,475.44 : 38,214.08 = 7,946.64 : x
  2. Step 2: Convert to fraction form
    25,475.44/38,214.08 = 7,946.64/x
  3. Step 3: Cross multiply
    25,475.44x = 38,214.08 × 7,946.64
  4. Step 4: Simplify right side
    25,475.44x = 303,673,536.69
  5. Step 5: Solve for x
    x = 303,673,536.69/25,475.44
  6. Step 6: Final answer
    x = 11,920.25

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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.