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Finding the Fourth Proportional to 19,958.58, 27,544.88 and 12,695.72

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Solution

The fourth proportional to 19,958.58, 27,544.88 and 12,695.72 is: 17,521.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,958.58 : 27,544.88 = 12,695.72 : x
  2. Step 2: Convert to fraction form
    19,958.58/27,544.88 = 12,695.72/x
  3. Step 3: Cross multiply
    19,958.58x = 27,544.88 × 12,695.72
  4. Step 4: Simplify right side
    19,958.58x = 349,702,083.91
  5. Step 5: Solve for x
    x = 349,702,083.91/19,958.58
  6. Step 6: Final answer
    x = 17,521.39

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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.