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Finding the Fourth Proportional to 64,648.52, 96,969.96 and 20,274.26

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Solution

The fourth proportional to 64,648.52, 96,969.96 and 20,274.26 is: 30,410.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,648.52 : 96,969.96 = 20,274.26 : x
  2. Step 2: Convert to fraction form
    64,648.52/96,969.96 = 20,274.26/x
  3. Step 3: Cross multiply
    64,648.52x = 96,969.96 × 20,274.26
  4. Step 4: Simplify right side
    64,648.52x = 1,965,994,181.23
  5. Step 5: Solve for x
    x = 1,965,994,181.23/64,648.52
  6. Step 6: Final answer
    x = 30,410.51

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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.