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Finding the Fourth Proportional to 52,669.14, 79,012.08 and 21,079.14

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Solution

The fourth proportional to 52,669.14, 79,012.08 and 21,079.14 is: 31,622.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,669.14 : 79,012.08 = 21,079.14 : x
  2. Step 2: Convert to fraction form
    52,669.14/79,012.08 = 21,079.14/x
  3. Step 3: Cross multiply
    52,669.14x = 79,012.08 × 21,079.14
  4. Step 4: Simplify right side
    52,669.14x = 1,665,506,696.01
  5. Step 5: Solve for x
    x = 1,665,506,696.01/52,669.14
  6. Step 6: Final answer
    x = 31,622.06

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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.