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Finding the Fourth Proportional to 53,265.66, 79,821.78 and 36,644.46

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Solution

The fourth proportional to 53,265.66, 79,821.78 and 36,644.46 is: 54,913.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,265.66 : 79,821.78 = 36,644.46 : x
  2. Step 2: Convert to fraction form
    53,265.66/79,821.78 = 36,644.46/x
  3. Step 3: Cross multiply
    53,265.66x = 79,821.78 × 36,644.46
  4. Step 4: Simplify right side
    53,265.66x = 2,925,026,024.34
  5. Step 5: Solve for x
    x = 2,925,026,024.34/53,265.66
  6. Step 6: Final answer
    x = 54,913.92

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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.