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Finding the Fourth Proportional to 30,411.52, 41,967.48 and 16,982.98

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Solution

The fourth proportional to 30,411.52, 41,967.48 and 16,982.98 is: 23,436.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,411.52 : 41,967.48 = 16,982.98 : x
  2. Step 2: Convert to fraction form
    30,411.52/41,967.48 = 16,982.98/x
  3. Step 3: Cross multiply
    30,411.52x = 41,967.48 × 16,982.98
  4. Step 4: Simplify right side
    30,411.52x = 712,732,873.49
  5. Step 5: Solve for x
    x = 712,732,873.49/30,411.52
  6. Step 6: Final answer
    x = 23,436.28

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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.