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Finding the Fourth Proportional to 54,328.70, 81,493.05 and 26,270.30

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Solution

The fourth proportional to 54,328.70, 81,493.05 and 26,270.30 is: 39,405.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,328.70 : 81,493.05 = 26,270.30 : x
  2. Step 2: Convert to fraction form
    54,328.70/81,493.05 = 26,270.30/x
  3. Step 3: Cross multiply
    54,328.70x = 81,493.05 × 26,270.30
  4. Step 4: Simplify right side
    54,328.70x = 2,140,846,871.42
  5. Step 5: Solve for x
    x = 2,140,846,871.42/54,328.70
  6. Step 6: Final answer
    x = 39,405.45

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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.