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Finding the Fourth Proportional to 52,984.66, 79,475.91 and 21,393.88

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Solution

The fourth proportional to 52,984.66, 79,475.91 and 21,393.88 is: 32,090.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,984.66 : 79,475.91 = 21,393.88 : x
  2. Step 2: Convert to fraction form
    52,984.66/79,475.91 = 21,393.88/x
  3. Step 3: Cross multiply
    52,984.66x = 79,475.91 × 21,393.88
  4. Step 4: Simplify right side
    52,984.66x = 1,700,298,081.43
  5. Step 5: Solve for x
    x = 1,700,298,081.43/52,984.66
  6. Step 6: Final answer
    x = 32,090.38

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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.