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Finding the Fourth Proportional to 8,957.73, 12,333.43 and 8,127.35

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Solution

The fourth proportional to 8,957.73, 12,333.43 and 8,127.35 is: 11,190.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,957.73 : 12,333.43 = 8,127.35 : x
  2. Step 2: Convert to fraction form
    8,957.73/12,333.43 = 8,127.35/x
  3. Step 3: Cross multiply
    8,957.73x = 12,333.43 × 8,127.35
  4. Step 4: Simplify right side
    8,957.73x = 100,238,133.14
  5. Step 5: Solve for x
    x = 100,238,133.14/8,957.73
  6. Step 6: Final answer
    x = 11,190.13

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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.