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Finding the Fourth Proportional to 33,630, 46,393.81 and 21,697.17

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Solution

The fourth proportional to 33,630, 46,393.81 and 21,697.17 is: 29,932.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,630 : 46,393.81 = 21,697.17 : x
  2. Step 2: Convert to fraction form
    33,630/46,393.81 = 21,697.17/x
  3. Step 3: Cross multiply
    33,630x = 46,393.81 × 21,697.17
  4. Step 4: Simplify right side
    33,630x = 1,006,614,328.27
  5. Step 5: Solve for x
    x = 1,006,614,328.27/33,630
  6. Step 6: Final answer
    x = 29,932.03

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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.