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Finding the Fourth Proportional to 39,618, 54,672.84 and 23,703.12

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Solution

The fourth proportional to 39,618, 54,672.84 and 23,703.12 is: 32,710.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,618 : 54,672.84 = 23,703.12 : x
  2. Step 2: Convert to fraction form
    39,618/54,672.84 = 23,703.12/x
  3. Step 3: Cross multiply
    39,618x = 54,672.84 × 23,703.12
  4. Step 4: Simplify right side
    39,618x = 1,295,916,887.26
  5. Step 5: Solve for x
    x = 1,295,916,887.26/39,618
  6. Step 6: Final answer
    x = 32,710.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.