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Finding the Fourth Proportional to 52,836.40, 79,254.72 and 13,393.52

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Solution

The fourth proportional to 52,836.40, 79,254.72 and 13,393.52 is: 20,090.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,836.40 : 79,254.72 = 13,393.52 : x
  2. Step 2: Convert to fraction form
    52,836.40/79,254.72 = 13,393.52/x
  3. Step 3: Cross multiply
    52,836.40x = 79,254.72 × 13,393.52
  4. Step 4: Simplify right side
    52,836.40x = 1,061,499,677.41
  5. Step 5: Solve for x
    x = 1,061,499,677.41/52,836.40
  6. Step 6: Final answer
    x = 20,090.31

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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.