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Finding the Fourth Proportional to 19,794.01, 27,315.78 and 10,719.48

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Solution

The fourth proportional to 19,794.01, 27,315.78 and 10,719.48 is: 14,792.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,794.01 : 27,315.78 = 10,719.48 : x
  2. Step 2: Convert to fraction form
    19,794.01/27,315.78 = 10,719.48/x
  3. Step 3: Cross multiply
    19,794.01x = 27,315.78 × 10,719.48
  4. Step 4: Simplify right side
    19,794.01x = 292,810,957.39
  5. Step 5: Solve for x
    x = 292,810,957.39/19,794.01
  6. Step 6: Final answer
    x = 14,792.91

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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.