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Finding the Fourth Proportional to 17,619.81, 24,328.10 and 11,343.12

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Solution

The fourth proportional to 17,619.81, 24,328.10 and 11,343.12 is: 15,661.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,619.81 : 24,328.10 = 11,343.12 : x
  2. Step 2: Convert to fraction form
    17,619.81/24,328.10 = 11,343.12/x
  3. Step 3: Cross multiply
    17,619.81x = 24,328.10 × 11,343.12
  4. Step 4: Simplify right side
    17,619.81x = 275,956,557.67
  5. Step 5: Solve for x
    x = 275,956,557.67/17,619.81
  6. Step 6: Final answer
    x = 15,661.72

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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.