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Finding the Fourth Proportional to 19,698.76, 27,183.78 and 10,746.48

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Solution

The fourth proportional to 19,698.76, 27,183.78 and 10,746.48 is: 14,829.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,698.76 : 27,183.78 = 10,746.48 : x
  2. Step 2: Convert to fraction form
    19,698.76/27,183.78 = 10,746.48/x
  3. Step 3: Cross multiply
    19,698.76x = 27,183.78 × 10,746.48
  4. Step 4: Simplify right side
    19,698.76x = 292,129,948.09
  5. Step 5: Solve for x
    x = 292,129,948.09/19,698.76
  6. Step 6: Final answer
    x = 14,829.86

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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.