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Finding the Fourth Proportional to 52,969.68, 79,461 and 21,813.84

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Solution

The fourth proportional to 52,969.68, 79,461 and 21,813.84 is: 32,723.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,969.68 : 79,461 = 21,813.84 : x
  2. Step 2: Convert to fraction form
    52,969.68/79,461 = 21,813.84/x
  3. Step 3: Cross multiply
    52,969.68x = 79,461 × 21,813.84
  4. Step 4: Simplify right side
    52,969.68x = 1,733,349,540.24
  5. Step 5: Solve for x
    x = 1,733,349,540.24/52,969.68
  6. Step 6: Final answer
    x = 32,723.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.