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Finding the Fourth Proportional to 9,950.70, 13,731.08 and 5,474.64

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Solution

The fourth proportional to 9,950.70, 13,731.08 and 5,474.64 is: 7,554.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,950.70 : 13,731.08 = 5,474.64 : x
  2. Step 2: Convert to fraction form
    9,950.70/13,731.08 = 5,474.64/x
  3. Step 3: Cross multiply
    9,950.70x = 13,731.08 × 5,474.64
  4. Step 4: Simplify right side
    9,950.70x = 75,172,719.81
  5. Step 5: Solve for x
    x = 75,172,719.81/9,950.70
  6. Step 6: Final answer
    x = 7,554.52

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1.5x scale

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.