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Finding the Fourth Proportional to 54,548.70, 81,628.65 and 37,830.30

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Solution

The fourth proportional to 54,548.70, 81,628.65 and 37,830.30 is: 56,610.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,548.70 : 81,628.65 = 37,830.30 : x
  2. Step 2: Convert to fraction form
    54,548.70/81,628.65 = 37,830.30/x
  3. Step 3: Cross multiply
    54,548.70x = 81,628.65 × 37,830.30
  4. Step 4: Simplify right side
    54,548.70x = 3,088,036,318.10
  5. Step 5: Solve for x
    x = 3,088,036,318.10/54,548.70
  6. Step 6: Final answer
    x = 56,610.63

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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.