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Finding the Fourth Proportional to 18,881.64, 28,323.14 and 5,733.63

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Solution

The fourth proportional to 18,881.64, 28,323.14 and 5,733.63 is: 8,600.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,881.64 : 28,323.14 = 5,733.63 : x
  2. Step 2: Convert to fraction form
    18,881.64/28,323.14 = 5,733.63/x
  3. Step 3: Cross multiply
    18,881.64x = 28,323.14 × 5,733.63
  4. Step 4: Simplify right side
    18,881.64x = 162,394,376.53
  5. Step 5: Solve for x
    x = 162,394,376.53/18,881.64
  6. Step 6: Final answer
    x = 8,600.65

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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.