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Finding the Fourth Proportional to 18,407.80, 27,608.93 and 5,926.16

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Solution

The fourth proportional to 18,407.80, 27,608.93 and 5,926.16 is: 8,888.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,407.80 : 27,608.93 = 5,926.16 : x
  2. Step 2: Convert to fraction form
    18,407.80/27,608.93 = 5,926.16/x
  3. Step 3: Cross multiply
    18,407.80x = 27,608.93 × 5,926.16
  4. Step 4: Simplify right side
    18,407.80x = 163,614,906.98
  5. Step 5: Solve for x
    x = 163,614,906.98/18,407.80
  6. Step 6: Final answer
    x = 8,888.35

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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.