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Finding the Fourth Proportional to 14,796.79, 20,378.07 and 14,750.66

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Solution

The fourth proportional to 14,796.79, 20,378.07 and 14,750.66 is: 20,314.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,796.79 : 20,378.07 = 14,750.66 : x
  2. Step 2: Convert to fraction form
    14,796.79/20,378.07 = 14,750.66/x
  3. Step 3: Cross multiply
    14,796.79x = 20,378.07 × 14,750.66
  4. Step 4: Simplify right side
    14,796.79x = 300,590,032.97
  5. Step 5: Solve for x
    x = 300,590,032.97/14,796.79
  6. Step 6: Final answer
    x = 20,314.55

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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.