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Finding the Fourth Proportional to 54,678.78, 75,457.44 and 33,469.74

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Solution

The fourth proportional to 54,678.78, 75,457.44 and 33,469.74 is: 46,188.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,678.78 : 75,457.44 = 33,469.74 : x
  2. Step 2: Convert to fraction form
    54,678.78/75,457.44 = 33,469.74/x
  3. Step 3: Cross multiply
    54,678.78x = 75,457.44 × 33,469.74
  4. Step 4: Simplify right side
    54,678.78x = 2,525,540,897.87
  5. Step 5: Solve for x
    x = 2,525,540,897.87/54,678.78
  6. Step 6: Final answer
    x = 46,188.68

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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.