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Finding the Fourth Proportional to 5,359.95, 8,030.19 and 5,243.31

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Solution

The fourth proportional to 5,359.95, 8,030.19 and 5,243.31 is: 7,855.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,359.95 : 8,030.19 = 5,243.31 : x
  2. Step 2: Convert to fraction form
    5,359.95/8,030.19 = 5,243.31/x
  3. Step 3: Cross multiply
    5,359.95x = 8,030.19 × 5,243.31
  4. Step 4: Simplify right side
    5,359.95x = 42,104,775.53
  5. Step 5: Solve for x
    x = 42,104,775.53/5,359.95
  6. Step 6: Final answer
    x = 7,855.44

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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.