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Finding the Fourth Proportional to 30,707.66, 46,058.84 and 18,696.69

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Solution

The fourth proportional to 30,707.66, 46,058.84 and 18,696.69 is: 28,043.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,707.66 : 46,058.84 = 18,696.69 : x
  2. Step 2: Convert to fraction form
    30,707.66/46,058.84 = 18,696.69/x
  3. Step 3: Cross multiply
    30,707.66x = 46,058.84 × 18,696.69
  4. Step 4: Simplify right side
    30,707.66x = 861,147,759.76
  5. Step 5: Solve for x
    x = 861,147,759.76/30,707.66
  6. Step 6: Final answer
    x = 28,043.42

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1.5x scale

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.