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Finding the Fourth Proportional to 19,793.64, 27,315.26 and 10,719.10

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Solution

The fourth proportional to 19,793.64, 27,315.26 and 10,719.10 is: 14,792.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,793.64 : 27,315.26 = 10,719.10 : x
  2. Step 2: Convert to fraction form
    19,793.64/27,315.26 = 10,719.10/x
  3. Step 3: Cross multiply
    19,793.64x = 27,315.26 × 10,719.10
  4. Step 4: Simplify right side
    19,793.64x = 292,795,003.47
  5. Step 5: Solve for x
    x = 292,795,003.47/19,793.64
  6. Step 6: Final answer
    x = 14,792.38

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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.