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Finding the Fourth Proportional to 53,316.48, 79,806.98 and 36,578.64

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Solution

The fourth proportional to 53,316.48, 79,806.98 and 36,578.64 is: 54,752.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,316.48 : 79,806.98 = 36,578.64 : x
  2. Step 2: Convert to fraction form
    53,316.48/79,806.98 = 36,578.64/x
  3. Step 3: Cross multiply
    53,316.48x = 79,806.98 × 36,578.64
  4. Step 4: Simplify right side
    53,316.48x = 2,919,230,790.91
  5. Step 5: Solve for x
    x = 2,919,230,790.91/53,316.48
  6. Step 6: Final answer
    x = 54,752.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.