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Finding the Fourth Proportional to 52,890.63, 79,333 and 38,673.67

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Solution

The fourth proportional to 52,890.63, 79,333 and 38,673.67 is: 58,008.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,890.63 : 79,333 = 38,673.67 : x
  2. Step 2: Convert to fraction form
    52,890.63/79,333 = 38,673.67/x
  3. Step 3: Cross multiply
    52,890.63x = 79,333 × 38,673.67
  4. Step 4: Simplify right side
    52,890.63x = 3,068,098,262.11
  5. Step 5: Solve for x
    x = 3,068,098,262.11/52,890.63
  6. Step 6: Final answer
    x = 58,008.35

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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.