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Finding the Fourth Proportional to 64,170.78, 96,256.62 and 19,796.56

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Solution

The fourth proportional to 64,170.78, 96,256.62 and 19,796.56 is: 29,694.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,170.78 : 96,256.62 = 19,796.56 : x
  2. Step 2: Convert to fraction form
    64,170.78/96,256.62 = 19,796.56/x
  3. Step 3: Cross multiply
    64,170.78x = 96,256.62 × 19,796.56
  4. Step 4: Simplify right side
    64,170.78x = 1,905,549,953.23
  5. Step 5: Solve for x
    x = 1,905,549,953.23/64,170.78
  6. Step 6: Final answer
    x = 29,694.98

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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.