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Finding the Fourth Proportional to 33,303.66, 45,954.78 and 18,965.40

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Solution

The fourth proportional to 33,303.66, 45,954.78 and 18,965.40 is: 26,169.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,303.66 : 45,954.78 = 18,965.40 : x
  2. Step 2: Convert to fraction form
    33,303.66/45,954.78 = 18,965.40/x
  3. Step 3: Cross multiply
    33,303.66x = 45,954.78 × 18,965.40
  4. Step 4: Simplify right side
    33,303.66x = 871,550,784.61
  5. Step 5: Solve for x
    x = 871,550,784.61/33,303.66
  6. Step 6: Final answer
    x = 26,169.82

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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.