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Finding the Fourth Proportional to 54,597.81, 81,897.16 and 17,157.05

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Solution

The fourth proportional to 54,597.81, 81,897.16 and 17,157.05 is: 25,735.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,597.81 : 81,897.16 = 17,157.05 : x
  2. Step 2: Convert to fraction form
    54,597.81/81,897.16 = 17,157.05/x
  3. Step 3: Cross multiply
    54,597.81x = 81,897.16 × 17,157.05
  4. Step 4: Simplify right side
    54,597.81x = 1,405,113,259.49
  5. Step 5: Solve for x
    x = 1,405,113,259.49/54,597.81
  6. Step 6: Final answer
    x = 25,735.71

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Similar ratio
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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.