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Finding the Fourth Proportional to 24,307.81, 33,544.79 and 13,129.81

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Solution

The fourth proportional to 24,307.81, 33,544.79 and 13,129.81 is: 18,119.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,307.81 : 33,544.79 = 13,129.81 : x
  2. Step 2: Convert to fraction form
    24,307.81/33,544.79 = 13,129.81/x
  3. Step 3: Cross multiply
    24,307.81x = 33,544.79 × 13,129.81
  4. Step 4: Simplify right side
    24,307.81x = 440,436,618.92
  5. Step 5: Solve for x
    x = 440,436,618.92/24,307.81
  6. Step 6: Final answer
    x = 18,119.14

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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.