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Finding the Fourth Proportional to 57,515.64, 79,386.36 and 44,765.88

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Solution

The fourth proportional to 57,515.64, 79,386.36 and 44,765.88 is: 61,788.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,515.64 : 79,386.36 = 44,765.88 : x
  2. Step 2: Convert to fraction form
    57,515.64/79,386.36 = 44,765.88/x
  3. Step 3: Cross multiply
    57,515.64x = 79,386.36 × 44,765.88
  4. Step 4: Simplify right side
    57,515.64x = 3,553,800,265.40
  5. Step 5: Solve for x
    x = 3,553,800,265.40/57,515.64
  6. Step 6: Final answer
    x = 61,788.42

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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.