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Finding the Fourth Proportional to 17,957.56, 24,781.06 and 9,891.45

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Solution

The fourth proportional to 17,957.56, 24,781.06 and 9,891.45 is: 13,650.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,957.56 : 24,781.06 = 9,891.45 : x
  2. Step 2: Convert to fraction form
    17,957.56/24,781.06 = 9,891.45/x
  3. Step 3: Cross multiply
    17,957.56x = 24,781.06 × 9,891.45
  4. Step 4: Simplify right side
    17,957.56x = 245,120,615.94
  5. Step 5: Solve for x
    x = 245,120,615.94/17,957.56
  6. Step 6: Final answer
    x = 13,650.00

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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.