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Finding the Fourth Proportional to 17,871.73, 24,661.36 and 9,913.93

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Solution

The fourth proportional to 17,871.73, 24,661.36 and 9,913.93 is: 13,680.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,871.73 : 24,661.36 = 9,913.93 : x
  2. Step 2: Convert to fraction form
    17,871.73/24,661.36 = 9,913.93/x
  3. Step 3: Cross multiply
    17,871.73x = 24,661.36 × 9,913.93
  4. Step 4: Simplify right side
    17,871.73x = 244,490,996.74
  5. Step 5: Solve for x
    x = 244,490,996.74/17,871.73
  6. Step 6: Final answer
    x = 13,680.32

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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.