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Finding the Fourth Proportional to 8,957.18, 12,364.31 and 5,971.93

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Solution

The fourth proportional to 8,957.18, 12,364.31 and 5,971.93 is: 8,243.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,957.18 : 12,364.31 = 5,971.93 : x
  2. Step 2: Convert to fraction form
    8,957.18/12,364.31 = 5,971.93/x
  3. Step 3: Cross multiply
    8,957.18x = 12,364.31 × 5,971.93
  4. Step 4: Simplify right side
    8,957.18x = 73,838,777.84
  5. Step 5: Solve for x
    x = 73,838,777.84/8,957.18
  6. Step 6: Final answer
    x = 8,243.53

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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.