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Finding the Fourth Proportional to 53,046.72, 79,570.80 and 21,471.84

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Solution

The fourth proportional to 53,046.72, 79,570.80 and 21,471.84 is: 32,208.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,046.72 : 79,570.80 = 21,471.84 : x
  2. Step 2: Convert to fraction form
    53,046.72/79,570.80 = 21,471.84/x
  3. Step 3: Cross multiply
    53,046.72x = 79,570.80 × 21,471.84
  4. Step 4: Simplify right side
    53,046.72x = 1,708,531,486.27
  5. Step 5: Solve for x
    x = 1,708,531,486.27/53,046.72
  6. Step 6: Final answer
    x = 32,208.05

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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.