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Finding the Fourth Proportional to 14,597.79, 20,144.95 and 7,883.42

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Solution

The fourth proportional to 14,597.79, 20,144.95 and 7,883.42 is: 10,879.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,597.79 : 20,144.95 = 7,883.42 : x
  2. Step 2: Convert to fraction form
    14,597.79/20,144.95 = 7,883.42/x
  3. Step 3: Cross multiply
    14,597.79x = 20,144.95 × 7,883.42
  4. Step 4: Simplify right side
    14,597.79x = 158,811,086.40
  5. Step 5: Solve for x
    x = 158,811,086.40/14,597.79
  6. Step 6: Final answer
    x = 10,879.12

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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.