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Finding the Fourth Proportional to 33,065.76, 45,631.14 and 17,958.60

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Solution

The fourth proportional to 33,065.76, 45,631.14 and 17,958.60 is: 24,783.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,065.76 : 45,631.14 = 17,958.60 : x
  2. Step 2: Convert to fraction form
    33,065.76/45,631.14 = 17,958.60/x
  3. Step 3: Cross multiply
    33,065.76x = 45,631.14 × 17,958.60
  4. Step 4: Simplify right side
    33,065.76x = 819,471,390.80
  5. Step 5: Solve for x
    x = 819,471,390.80/33,065.76
  6. Step 6: Final answer
    x = 24,783.08

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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.