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Finding the Fourth Proportional to 33,316.99, 45,973.02 and 21,396.48

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Solution

The fourth proportional to 33,316.99, 45,973.02 and 21,396.48 is: 29,524.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,316.99 : 45,973.02 = 21,396.48 : x
  2. Step 2: Convert to fraction form
    33,316.99/45,973.02 = 21,396.48/x
  3. Step 3: Cross multiply
    33,316.99x = 45,973.02 × 21,396.48
  4. Step 4: Simplify right side
    33,316.99x = 983,660,802.97
  5. Step 5: Solve for x
    x = 983,660,802.97/33,316.99
  6. Step 6: Final answer
    x = 29,524.30

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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.