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Finding the Fourth Proportional to 19,777.64, 29,671.32 and 5,926.64

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Solution

The fourth proportional to 19,777.64, 29,671.32 and 5,926.64 is: 8,891.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,777.64 : 29,671.32 = 5,926.64 : x
  2. Step 2: Convert to fraction form
    19,777.64/29,671.32 = 5,926.64/x
  3. Step 3: Cross multiply
    19,777.64x = 29,671.32 × 5,926.64
  4. Step 4: Simplify right side
    19,777.64x = 175,851,261.62
  5. Step 5: Solve for x
    x = 175,851,261.62/19,777.64
  6. Step 6: Final answer
    x = 8,891.42

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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.