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Finding the Fourth Proportional to 54,435.50, 81,653.25 and 17,499.50

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Solution

The fourth proportional to 54,435.50, 81,653.25 and 17,499.50 is: 26,249.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,435.50 : 81,653.25 = 17,499.50 : x
  2. Step 2: Convert to fraction form
    54,435.50/81,653.25 = 17,499.50/x
  3. Step 3: Cross multiply
    54,435.50x = 81,653.25 × 17,499.50
  4. Step 4: Simplify right side
    54,435.50x = 1,428,891,048.38
  5. Step 5: Solve for x
    x = 1,428,891,048.38/54,435.50
  6. Step 6: Final answer
    x = 26,249.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.