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Finding the Fourth Proportional to 14,933.71, 20,608.51 and 8,645.95

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Solution

The fourth proportional to 14,933.71, 20,608.51 and 8,645.95 is: 11,931.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,933.71 : 20,608.51 = 8,645.95 : x
  2. Step 2: Convert to fraction form
    14,933.71/20,608.51 = 8,645.95/x
  3. Step 3: Cross multiply
    14,933.71x = 20,608.51 × 8,645.95
  4. Step 4: Simplify right side
    14,933.71x = 178,180,147.03
  5. Step 5: Solve for x
    x = 178,180,147.03/14,933.71
  6. Step 6: Final answer
    x = 11,931.41

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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.