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Finding the Fourth Proportional to 11,653.56, 17,480.16 and 2,888.42

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Solution

The fourth proportional to 11,653.56, 17,480.16 and 2,888.42 is: 4,332.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,653.56 : 17,480.16 = 2,888.42 : x
  2. Step 2: Convert to fraction form
    11,653.56/17,480.16 = 2,888.42/x
  3. Step 3: Cross multiply
    11,653.56x = 17,480.16 × 2,888.42
  4. Step 4: Simplify right side
    11,653.56x = 50,489,956.35
  5. Step 5: Solve for x
    x = 50,489,956.35/11,653.56
  6. Step 6: Final answer
    x = 4,332.58

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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.