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Finding the Fourth Proportional to 52,762.50, 72,814.12 and 28,889.37

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Solution

The fourth proportional to 52,762.50, 72,814.12 and 28,889.37 is: 39,868.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,762.50 : 72,814.12 = 28,889.37 : x
  2. Step 2: Convert to fraction form
    52,762.50/72,814.12 = 28,889.37/x
  3. Step 3: Cross multiply
    52,762.50x = 72,814.12 × 28,889.37
  4. Step 4: Simplify right side
    52,762.50x = 2,103,553,981.68
  5. Step 5: Solve for x
    x = 2,103,553,981.68/52,762.50
  6. Step 6: Final answer
    x = 39,868.35

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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.