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Finding the Fourth Proportional to 52,536.63, 72,500.79 and 28,663.80

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Solution

The fourth proportional to 52,536.63, 72,500.79 and 28,663.80 is: 39,556.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,536.63 : 72,500.79 = 28,663.80 : x
  2. Step 2: Convert to fraction form
    52,536.63/72,500.79 = 28,663.80/x
  3. Step 3: Cross multiply
    52,536.63x = 72,500.79 × 28,663.80
  4. Step 4: Simplify right side
    52,536.63x = 2,078,148,144.40
  5. Step 5: Solve for x
    x = 2,078,148,144.40/52,536.63
  6. Step 6: Final answer
    x = 39,556.18

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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.