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Finding the Fourth Proportional to 19,204.11, 28,806.13 and 7,509.13

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Solution

The fourth proportional to 19,204.11, 28,806.13 and 7,509.13 is: 11,263.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,204.11 : 28,806.13 = 7,509.13 : x
  2. Step 2: Convert to fraction form
    19,204.11/28,806.13 = 7,509.13/x
  3. Step 3: Cross multiply
    19,204.11x = 28,806.13 × 7,509.13
  4. Step 4: Simplify right side
    19,204.11x = 216,308,912.34
  5. Step 5: Solve for x
    x = 216,308,912.34/19,204.11
  6. Step 6: Final answer
    x = 11,263.68

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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.