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Finding the Fourth Proportional to 33,129.59, 45,719.01 and 19,698.23

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Solution

The fourth proportional to 33,129.59, 45,719.01 and 19,698.23 is: 27,183.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,129.59 : 45,719.01 = 19,698.23 : x
  2. Step 2: Convert to fraction form
    33,129.59/45,719.01 = 19,698.23/x
  3. Step 3: Cross multiply
    33,129.59x = 45,719.01 × 19,698.23
  4. Step 4: Simplify right side
    33,129.59x = 900,583,345.76
  5. Step 5: Solve for x
    x = 900,583,345.76/33,129.59
  6. Step 6: Final answer
    x = 27,183.66

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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.