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Finding the Fourth Proportional to 25,881.48, 38,824.56 and 8,351.64

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Solution

The fourth proportional to 25,881.48, 38,824.56 and 8,351.64 is: 12,528.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,881.48 : 38,824.56 = 8,351.64 : x
  2. Step 2: Convert to fraction form
    25,881.48/38,824.56 = 8,351.64/x
  3. Step 3: Cross multiply
    25,881.48x = 38,824.56 × 8,351.64
  4. Step 4: Simplify right side
    25,881.48x = 324,248,748.28
  5. Step 5: Solve for x
    x = 324,248,748.28/25,881.48
  6. Step 6: Final answer
    x = 12,528.22

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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.