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Finding the Fourth Proportional to 54,580.56, 81,870.84 and 19,530.24

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Solution

The fourth proportional to 54,580.56, 81,870.84 and 19,530.24 is: 29,295.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,580.56 : 81,870.84 = 19,530.24 : x
  2. Step 2: Convert to fraction form
    54,580.56/81,870.84 = 19,530.24/x
  3. Step 3: Cross multiply
    54,580.56x = 81,870.84 × 19,530.24
  4. Step 4: Simplify right side
    54,580.56x = 1,598,957,154.20
  5. Step 5: Solve for x
    x = 1,598,957,154.20/54,580.56
  6. Step 6: Final answer
    x = 29,295.36

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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.