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Finding the Fourth Proportional to 19,307.01, 28,965.51 and 5,456.01

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Solution

The fourth proportional to 19,307.01, 28,965.51 and 5,456.01 is: 8,185.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,307.01 : 28,965.51 = 5,456.01 : x
  2. Step 2: Convert to fraction form
    19,307.01/28,965.51 = 5,456.01/x
  3. Step 3: Cross multiply
    19,307.01x = 28,965.51 × 5,456.01
  4. Step 4: Simplify right side
    19,307.01x = 158,036,112.22
  5. Step 5: Solve for x
    x = 158,036,112.22/19,307.01
  6. Step 6: Final answer
    x = 8,185.43

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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.