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Finding the Fourth Proportional to 46,396.80, 69,588.72 and 15,228

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Solution

The fourth proportional to 46,396.80, 69,588.72 and 15,228 is: 22,839.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,396.80 : 69,588.72 = 15,228 : x
  2. Step 2: Convert to fraction form
    46,396.80/69,588.72 = 15,228/x
  3. Step 3: Cross multiply
    46,396.80x = 69,588.72 × 15,228
  4. Step 4: Simplify right side
    46,396.80x = 1,059,697,028.16
  5. Step 5: Solve for x
    x = 1,059,697,028.16/46,396.80
  6. Step 6: Final answer
    x = 22,839.87

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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.