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Finding the Fourth Proportional to 8,957.52, 12,361.64 and 5,890.23

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Solution

The fourth proportional to 8,957.52, 12,361.64 and 5,890.23 is: 8,128.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,957.52 : 12,361.64 = 5,890.23 : x
  2. Step 2: Convert to fraction form
    8,957.52/12,361.64 = 5,890.23/x
  3. Step 3: Cross multiply
    8,957.52x = 12,361.64 × 5,890.23
  4. Step 4: Simplify right side
    8,957.52x = 72,812,873.33
  5. Step 5: Solve for x
    x = 72,812,873.33/8,957.52
  6. Step 6: Final answer
    x = 8,128.69

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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.