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Finding the Fourth Proportional to 53,298.88, 79,971.90 and 27,992.44

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Solution

The fourth proportional to 53,298.88, 79,971.90 and 27,992.44 is: 42,001.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,298.88 : 79,971.90 = 27,992.44 : x
  2. Step 2: Convert to fraction form
    53,298.88/79,971.90 = 27,992.44/x
  3. Step 3: Cross multiply
    53,298.88x = 79,971.90 × 27,992.44
  4. Step 4: Simplify right side
    53,298.88x = 2,238,608,612.44
  5. Step 5: Solve for x
    x = 2,238,608,612.44/53,298.88
  6. Step 6: Final answer
    x = 42,001.04

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1.5x scale

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.