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Finding the Fourth Proportional to 52,776.18, 72,828.54 and 28,902.96

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Solution

The fourth proportional to 52,776.18, 72,828.54 and 28,902.96 is: 39,884.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,776.18 : 72,828.54 = 28,902.96 : x
  2. Step 2: Convert to fraction form
    52,776.18/72,828.54 = 28,902.96/x
  3. Step 3: Cross multiply
    52,776.18x = 72,828.54 × 28,902.96
  4. Step 4: Simplify right side
    52,776.18x = 2,104,960,378.48
  5. Step 5: Solve for x
    x = 2,104,960,378.48/52,776.18
  6. Step 6: Final answer
    x = 39,884.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.