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Finding the Fourth Proportional to 30,260.81, 41,759.92 and 17,012.81

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Solution

The fourth proportional to 30,260.81, 41,759.92 and 17,012.81 is: 23,477.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,260.81 : 41,759.92 = 17,012.81 : x
  2. Step 2: Convert to fraction form
    30,260.81/41,759.92 = 17,012.81/x
  3. Step 3: Cross multiply
    30,260.81x = 41,759.92 × 17,012.81
  4. Step 4: Simplify right side
    30,260.81x = 710,453,710.24
  5. Step 5: Solve for x
    x = 710,453,710.24/30,260.81
  6. Step 6: Final answer
    x = 23,477.68

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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.