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Finding the Fourth Proportional to 56,692.32, 85,042.80 and 17,252.80

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Solution

The fourth proportional to 56,692.32, 85,042.80 and 17,252.80 is: 25,880.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,692.32 : 85,042.80 = 17,252.80 : x
  2. Step 2: Convert to fraction form
    56,692.32/85,042.80 = 17,252.80/x
  3. Step 3: Cross multiply
    56,692.32x = 85,042.80 × 17,252.80
  4. Step 4: Simplify right side
    56,692.32x = 1,467,226,419.84
  5. Step 5: Solve for x
    x = 1,467,226,419.84/56,692.32
  6. Step 6: Final answer
    x = 25,880.51

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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.