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Finding the Fourth Proportional to 53,281.80, 79,922.70 and 37,384.20

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Solution

The fourth proportional to 53,281.80, 79,922.70 and 37,384.20 is: 56,076.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,281.80 : 79,922.70 = 37,384.20 : x
  2. Step 2: Convert to fraction form
    53,281.80/79,922.70 = 37,384.20/x
  3. Step 3: Cross multiply
    53,281.80x = 79,922.70 × 37,384.20
  4. Step 4: Simplify right side
    53,281.80x = 2,987,846,201.34
  5. Step 5: Solve for x
    x = 2,987,846,201.34/53,281.80
  6. Step 6: Final answer
    x = 56,076.30

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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.