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Finding the Fourth Proportional to 7,319.52, 10,100.52 and 4,176

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Solution

The fourth proportional to 7,319.52, 10,100.52 and 4,176 is: 5,762.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,319.52 : 10,100.52 = 4,176 : x
  2. Step 2: Convert to fraction form
    7,319.52/10,100.52 = 4,176/x
  3. Step 3: Cross multiply
    7,319.52x = 10,100.52 × 4,176
  4. Step 4: Simplify right side
    7,319.52x = 42,179,771.52
  5. Step 5: Solve for x
    x = 42,179,771.52/7,319.52
  6. Step 6: Final answer
    x = 5,762.64

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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.