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Finding the Fourth Proportional to 56,428.55, 84,635.90 and 32,748.98

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Solution

The fourth proportional to 56,428.55, 84,635.90 and 32,748.98 is: 49,119.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,428.55 : 84,635.90 = 32,748.98 : x
  2. Step 2: Convert to fraction form
    56,428.55/84,635.90 = 32,748.98/x
  3. Step 3: Cross multiply
    56,428.55x = 84,635.90 × 32,748.98
  4. Step 4: Simplify right side
    56,428.55x = 2,771,738,809.46
  5. Step 5: Solve for x
    x = 2,771,738,809.46/56,428.55
  6. Step 6: Final answer
    x = 49,119.44

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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.