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Finding the Fourth Proportional to 54,300.64, 74,927.28 and 30,425.44

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Solution

The fourth proportional to 54,300.64, 74,927.28 and 30,425.44 is: 41,982.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,300.64 : 74,927.28 = 30,425.44 : x
  2. Step 2: Convert to fraction form
    54,300.64/74,927.28 = 30,425.44/x
  3. Step 3: Cross multiply
    54,300.64x = 74,927.28 × 30,425.44
  4. Step 4: Simplify right side
    54,300.64x = 2,279,695,462.00
  5. Step 5: Solve for x
    x = 2,279,695,462.00/54,300.64
  6. Step 6: Final answer
    x = 41,982.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.