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Finding the Fourth Proportional to 19,359.68, 29,039.72 and 7,673.00

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Solution

The fourth proportional to 19,359.68, 29,039.72 and 7,673.00 is: 11,509.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,359.68 : 29,039.72 = 7,673.00 : x
  2. Step 2: Convert to fraction form
    19,359.68/29,039.72 = 7,673.00/x
  3. Step 3: Cross multiply
    19,359.68x = 29,039.72 × 7,673.00
  4. Step 4: Simplify right side
    19,359.68x = 222,821,588.00
  5. Step 5: Solve for x
    x = 222,821,588.00/19,359.68
  6. Step 6: Final answer
    x = 11,509.57

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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.