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Finding the Fourth Proportional to 19,659.22, 29,474.93 and 6,328.09

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Solution

The fourth proportional to 19,659.22, 29,474.93 and 6,328.09 is: 9,487.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,659.22 : 29,474.93 = 6,328.09 : x
  2. Step 2: Convert to fraction form
    19,659.22/29,474.93 = 6,328.09/x
  3. Step 3: Cross multiply
    19,659.22x = 29,474.93 × 6,328.09
  4. Step 4: Simplify right side
    19,659.22x = 186,519,830.77
  5. Step 5: Solve for x
    x = 186,519,830.77/19,659.22
  6. Step 6: Final answer
    x = 9,487.65

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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.