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Finding the Fourth Proportional to 30,404.84, 41,952.47 and 18,461.66

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Solution

The fourth proportional to 30,404.84, 41,952.47 and 18,461.66 is: 25,473.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,404.84 : 41,952.47 = 18,461.66 : x
  2. Step 2: Convert to fraction form
    30,404.84/41,952.47 = 18,461.66/x
  3. Step 3: Cross multiply
    30,404.84x = 41,952.47 × 18,461.66
  4. Step 4: Simplify right side
    30,404.84x = 774,511,935.23
  5. Step 5: Solve for x
    x = 774,511,935.23/30,404.84
  6. Step 6: Final answer
    x = 25,473.31

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1.5x scale

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.