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Finding the Fourth Proportional to 7,284.98, 10,924.22 and 3,390.50

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Solution

The fourth proportional to 7,284.98, 10,924.22 and 3,390.50 is: 5,084.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,284.98 : 10,924.22 = 3,390.50 : x
  2. Step 2: Convert to fraction form
    7,284.98/10,924.22 = 3,390.50/x
  3. Step 3: Cross multiply
    7,284.98x = 10,924.22 × 3,390.50
  4. Step 4: Simplify right side
    7,284.98x = 37,038,567.91
  5. Step 5: Solve for x
    x = 37,038,567.91/7,284.98
  6. Step 6: Final answer
    x = 5,084.24

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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.