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Finding the Fourth Proportional to 7,308.09, 10,948.32 and 3,605.99

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Solution

The fourth proportional to 7,308.09, 10,948.32 and 3,605.99 is: 5,402.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,308.09 : 10,948.32 = 3,605.99 : x
  2. Step 2: Convert to fraction form
    7,308.09/10,948.32 = 3,605.99/x
  3. Step 3: Cross multiply
    7,308.09x = 10,948.32 × 3,605.99
  4. Step 4: Simplify right side
    7,308.09x = 39,479,477.70
  5. Step 5: Solve for x
    x = 39,479,477.70/7,308.09
  6. Step 6: Final answer
    x = 5,402.16

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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.