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Finding the Fourth Proportional to 55,546.60, 76,653.99 and 51,028

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Solution

The fourth proportional to 55,546.60, 76,653.99 and 51,028 is: 70,418.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,546.60 : 76,653.99 = 51,028 : x
  2. Step 2: Convert to fraction form
    55,546.60/76,653.99 = 51,028/x
  3. Step 3: Cross multiply
    55,546.60x = 76,653.99 × 51,028
  4. Step 4: Simplify right side
    55,546.60x = 3,911,499,801.72
  5. Step 5: Solve for x
    x = 3,911,499,801.72/55,546.60
  6. Step 6: Final answer
    x = 70,418.35

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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.