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Finding the Fourth Proportional to 19,396.88, 29,099.80 and 6,069.12

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Solution

The fourth proportional to 19,396.88, 29,099.80 and 6,069.12 is: 9,105.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,396.88 : 29,099.80 = 6,069.12 : x
  2. Step 2: Convert to fraction form
    19,396.88/29,099.80 = 6,069.12/x
  3. Step 3: Cross multiply
    19,396.88x = 29,099.80 × 6,069.12
  4. Step 4: Simplify right side
    19,396.88x = 176,610,178.18
  5. Step 5: Solve for x
    x = 176,610,178.18/19,396.88
  6. Step 6: Final answer
    x = 9,105.08

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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.