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Finding the Fourth Proportional to 5,263.48, 7,890.51 and 2,488.42

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Solution

The fourth proportional to 5,263.48, 7,890.51 and 2,488.42 is: 3,730.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,263.48 : 7,890.51 = 2,488.42 : x
  2. Step 2: Convert to fraction form
    5,263.48/7,890.51 = 2,488.42/x
  3. Step 3: Cross multiply
    5,263.48x = 7,890.51 × 2,488.42
  4. Step 4: Simplify right side
    5,263.48x = 19,634,922.09
  5. Step 5: Solve for x
    x = 19,634,922.09/5,263.48
  6. Step 6: Final answer
    x = 3,730.41

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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.