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Finding the Fourth Proportional to 64,314.64, 88,747.14 and 36,019.72

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Solution

The fourth proportional to 64,314.64, 88,747.14 and 36,019.72 is: 49,703.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,314.64 : 88,747.14 = 36,019.72 : x
  2. Step 2: Convert to fraction form
    64,314.64/88,747.14 = 36,019.72/x
  3. Step 3: Cross multiply
    64,314.64x = 88,747.14 × 36,019.72
  4. Step 4: Simplify right side
    64,314.64x = 3,196,647,133.60
  5. Step 5: Solve for x
    x = 3,196,647,133.60/64,314.64
  6. Step 6: Final answer
    x = 49,703.26

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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.