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Finding the Fourth Proportional to 52,798.48, 72,861.92 and 28,924.96

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Solution

The fourth proportional to 52,798.48, 72,861.92 and 28,924.96 is: 39,916.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,798.48 : 72,861.92 = 28,924.96 : x
  2. Step 2: Convert to fraction form
    52,798.48/72,861.92 = 28,924.96/x
  3. Step 3: Cross multiply
    52,798.48x = 72,861.92 × 28,924.96
  4. Step 4: Simplify right side
    52,798.48x = 2,107,528,121.52
  5. Step 5: Solve for x
    x = 2,107,528,121.52/52,798.48
  6. Step 6: Final answer
    x = 39,916.45

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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.