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Finding the Fourth Proportional to 12,506.52, 17,258.22 and 11,003.16

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Solution

The fourth proportional to 12,506.52, 17,258.22 and 11,003.16 is: 15,183.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,506.52 : 17,258.22 = 11,003.16 : x
  2. Step 2: Convert to fraction form
    12,506.52/17,258.22 = 11,003.16/x
  3. Step 3: Cross multiply
    12,506.52x = 17,258.22 × 11,003.16
  4. Step 4: Simplify right side
    12,506.52x = 189,894,955.98
  5. Step 5: Solve for x
    x = 189,894,955.98/12,506.52
  6. Step 6: Final answer
    x = 15,183.68

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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.