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Finding the Fourth Proportional to 33,309.99, 45,967.60 and 19,702.90

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Solution

The fourth proportional to 33,309.99, 45,967.60 and 19,702.90 is: 27,189.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,309.99 : 45,967.60 = 19,702.90 : x
  2. Step 2: Convert to fraction form
    33,309.99/45,967.60 = 19,702.90/x
  3. Step 3: Cross multiply
    33,309.99x = 45,967.60 × 19,702.90
  4. Step 4: Simplify right side
    33,309.99x = 905,695,026.04
  5. Step 5: Solve for x
    x = 905,695,026.04/33,309.99
  6. Step 6: Final answer
    x = 27,189.89

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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.