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Finding the Fourth Proportional to 12,658.16, 18,873.26 and 11,604.31

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Solution

The fourth proportional to 12,658.16, 18,873.26 and 11,604.31 is: 17,301.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,658.16 : 18,873.26 = 11,604.31 : x
  2. Step 2: Convert to fraction form
    12,658.16/18,873.26 = 11,604.31/x
  3. Step 3: Cross multiply
    12,658.16x = 18,873.26 × 11,604.31
  4. Step 4: Simplify right side
    12,658.16x = 219,011,054.55
  5. Step 5: Solve for x
    x = 219,011,054.55/12,658.16
  6. Step 6: Final answer
    x = 17,301.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.