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Finding the Fourth Proportional to 17,719.97, 24,430.82 and 14,521.68

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Solution

The fourth proportional to 17,719.97, 24,430.82 and 14,521.68 is: 20,021.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,719.97 : 24,430.82 = 14,521.68 : x
  2. Step 2: Convert to fraction form
    17,719.97/24,430.82 = 14,521.68/x
  3. Step 3: Cross multiply
    17,719.97x = 24,430.82 × 14,521.68
  4. Step 4: Simplify right side
    17,719.97x = 354,776,477.57
  5. Step 5: Solve for x
    x = 354,776,477.57/17,719.97
  6. Step 6: Final answer
    x = 20,021.29

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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.