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Finding the Fourth Proportional to 19,215.99, 28,836.93 and 6,736.14

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Solution

The fourth proportional to 19,215.99, 28,836.93 and 6,736.14 is: 10,108.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,215.99 : 28,836.93 = 6,736.14 : x
  2. Step 2: Convert to fraction form
    19,215.99/28,836.93 = 6,736.14/x
  3. Step 3: Cross multiply
    19,215.99x = 28,836.93 × 6,736.14
  4. Step 4: Simplify right side
    19,215.99x = 194,249,597.65
  5. Step 5: Solve for x
    x = 194,249,597.65/19,215.99
  6. Step 6: Final answer
    x = 10,108.75

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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.