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Finding the Fourth Proportional to 9,165.76, 13,750.97 and 4,238.93

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Solution

The fourth proportional to 9,165.76, 13,750.97 and 4,238.93 is: 6,359.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,165.76 : 13,750.97 = 4,238.93 : x
  2. Step 2: Convert to fraction form
    9,165.76/13,750.97 = 4,238.93/x
  3. Step 3: Cross multiply
    9,165.76x = 13,750.97 × 4,238.93
  4. Step 4: Simplify right side
    9,165.76x = 58,289,412.44
  5. Step 5: Solve for x
    x = 58,289,412.44/9,165.76
  6. Step 6: Final answer
    x = 6,359.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.