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Finding the Fourth Proportional to 52,188, 78,296.40 and 15,252

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Solution

The fourth proportional to 52,188, 78,296.40 and 15,252 is: 22,882.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,188 : 78,296.40 = 15,252 : x
  2. Step 2: Convert to fraction form
    52,188/78,296.40 = 15,252/x
  3. Step 3: Cross multiply
    52,188x = 78,296.40 × 15,252
  4. Step 4: Simplify right side
    52,188x = 1,194,176,692.80
  5. Step 5: Solve for x
    x = 1,194,176,692.80/52,188
  6. Step 6: Final answer
    x = 22,882.21

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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.