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Finding the Fourth Proportional to 12,957.51, 19,433.03 and 3,723.51

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Solution

The fourth proportional to 12,957.51, 19,433.03 and 3,723.51 is: 5,584.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,957.51 : 19,433.03 = 3,723.51 : x
  2. Step 2: Convert to fraction form
    12,957.51/19,433.03 = 3,723.51/x
  3. Step 3: Cross multiply
    12,957.51x = 19,433.03 × 3,723.51
  4. Step 4: Simplify right side
    12,957.51x = 72,359,062.92
  5. Step 5: Solve for x
    x = 72,359,062.92/12,957.51
  6. Step 6: Final answer
    x = 5,584.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.