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Finding the Fourth Proportional to 10,678.99, 14,735.97 and 7,324.68

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Solution

The fourth proportional to 10,678.99, 14,735.97 and 7,324.68 is: 10,107.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,678.99 : 14,735.97 = 7,324.68 : x
  2. Step 2: Convert to fraction form
    10,678.99/14,735.97 = 7,324.68/x
  3. Step 3: Cross multiply
    10,678.99x = 14,735.97 × 7,324.68
  4. Step 4: Simplify right side
    10,678.99x = 107,936,264.74
  5. Step 5: Solve for x
    x = 107,936,264.74/10,678.99
  6. Step 6: Final answer
    x = 10,107.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.