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Finding the Fourth Proportional to 19,167.88, 28,743.90 and 7,326.02

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Solution

The fourth proportional to 19,167.88, 28,743.90 and 7,326.02 is: 10,986.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,167.88 : 28,743.90 = 7,326.02 : x
  2. Step 2: Convert to fraction form
    19,167.88/28,743.90 = 7,326.02/x
  3. Step 3: Cross multiply
    19,167.88x = 28,743.90 × 7,326.02
  4. Step 4: Simplify right side
    19,167.88x = 210,578,386.28
  5. Step 5: Solve for x
    x = 210,578,386.28/19,167.88
  6. Step 6: Final answer
    x = 10,986.00

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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.