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Finding the Fourth Proportional to 52,765.74, 72,818.37 and 28,894.68

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Solution

The fourth proportional to 52,765.74, 72,818.37 and 28,894.68 is: 39,875.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,765.74 : 72,818.37 = 28,894.68 : x
  2. Step 2: Convert to fraction form
    52,765.74/72,818.37 = 28,894.68/x
  3. Step 3: Cross multiply
    52,765.74x = 72,818.37 × 28,894.68
  4. Step 4: Simplify right side
    52,765.74x = 2,104,063,499.27
  5. Step 5: Solve for x
    x = 2,104,063,499.27/52,765.74
  6. Step 6: Final answer
    x = 39,875.56

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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.