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Finding the Fourth Proportional to 54,753.67, 82,131.11 and 17,312.84

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Solution

The fourth proportional to 54,753.67, 82,131.11 and 17,312.84 is: 25,969.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,753.67 : 82,131.11 = 17,312.84 : x
  2. Step 2: Convert to fraction form
    54,753.67/82,131.11 = 17,312.84/x
  3. Step 3: Cross multiply
    54,753.67x = 82,131.11 × 17,312.84
  4. Step 4: Simplify right side
    54,753.67x = 1,421,922,739.53
  5. Step 5: Solve for x
    x = 1,421,922,739.53/54,753.67
  6. Step 6: Final answer
    x = 25,969.45

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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.