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Finding the Fourth Proportional to 19,191.77, 28,795.04 and 6,713.09

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Solution

The fourth proportional to 19,191.77, 28,795.04 and 6,713.09 is: 10,072.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,191.77 : 28,795.04 = 6,713.09 : x
  2. Step 2: Convert to fraction form
    19,191.77/28,795.04 = 6,713.09/x
  3. Step 3: Cross multiply
    19,191.77x = 28,795.04 × 6,713.09
  4. Step 4: Simplify right side
    19,191.77x = 193,303,661.51
  5. Step 5: Solve for x
    x = 193,303,661.51/19,191.77
  6. Step 6: Final answer
    x = 10,072.22

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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.