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Finding the Fourth Proportional to 11,248.64, 15,525.48 and 7,472.12

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Solution

The fourth proportional to 11,248.64, 15,525.48 and 7,472.12 is: 10,313.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,248.64 : 15,525.48 = 7,472.12 : x
  2. Step 2: Convert to fraction form
    11,248.64/15,525.48 = 7,472.12/x
  3. Step 3: Cross multiply
    11,248.64x = 15,525.48 × 7,472.12
  4. Step 4: Simplify right side
    11,248.64x = 116,008,249.62
  5. Step 5: Solve for x
    x = 116,008,249.62/11,248.64
  6. Step 6: Final answer
    x = 10,313.09

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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.