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Finding the Fourth Proportional to 29,284.50, 40,419.90 and 16,716.54

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Solution

The fourth proportional to 29,284.50, 40,419.90 and 16,716.54 is: 23,072.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,284.50 : 40,419.90 = 16,716.54 : x
  2. Step 2: Convert to fraction form
    29,284.50/40,419.90 = 16,716.54/x
  3. Step 3: Cross multiply
    29,284.50x = 40,419.90 × 16,716.54
  4. Step 4: Simplify right side
    29,284.50x = 675,680,875.15
  5. Step 5: Solve for x
    x = 675,680,875.15/29,284.50
  6. Step 6: Final answer
    x = 23,072.99

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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.