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Finding the Fourth Proportional to 33,162.66, 45,756.59 and 18,819.30

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Solution

The fourth proportional to 33,162.66, 45,756.59 and 18,819.30 is: 25,966.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,162.66 : 45,756.59 = 18,819.30 : x
  2. Step 2: Convert to fraction form
    33,162.66/45,756.59 = 18,819.30/x
  3. Step 3: Cross multiply
    33,162.66x = 45,756.59 × 18,819.30
  4. Step 4: Simplify right side
    33,162.66x = 861,106,994.19
  5. Step 5: Solve for x
    x = 861,106,994.19/33,162.66
  6. Step 6: Final answer
    x = 25,966.16

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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.