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Finding the Fourth Proportional to 19,707, 27,195.68 and 14,675.55

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Solution

The fourth proportional to 19,707, 27,195.68 and 14,675.55 is: 20,252.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,707 : 27,195.68 = 14,675.55 : x
  2. Step 2: Convert to fraction form
    19,707/27,195.68 = 14,675.55/x
  3. Step 3: Cross multiply
    19,707x = 27,195.68 × 14,675.55
  4. Step 4: Simplify right side
    19,707x = 399,111,488.25
  5. Step 5: Solve for x
    x = 399,111,488.25/19,707
  6. Step 6: Final answer
    x = 20,252.27

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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.