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Finding the Fourth Proportional to 52,748.40, 79,133.40 and 17,713.20

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Solution

The fourth proportional to 52,748.40, 79,133.40 and 17,713.20 is: 26,573.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,748.40 : 79,133.40 = 17,713.20 : x
  2. Step 2: Convert to fraction form
    52,748.40/79,133.40 = 17,713.20/x
  3. Step 3: Cross multiply
    52,748.40x = 79,133.40 × 17,713.20
  4. Step 4: Simplify right side
    52,748.40x = 1,401,705,740.88
  5. Step 5: Solve for x
    x = 1,401,705,740.88/52,748.40
  6. Step 6: Final answer
    x = 26,573.43

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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.