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Finding the Fourth Proportional to 14,359.42, 19,816.14 and 8,770.42

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Solution

The fourth proportional to 14,359.42, 19,816.14 and 8,770.42 is: 12,103.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,359.42 : 19,816.14 = 8,770.42 : x
  2. Step 2: Convert to fraction form
    14,359.42/19,816.14 = 8,770.42/x
  3. Step 3: Cross multiply
    14,359.42x = 19,816.14 × 8,770.42
  4. Step 4: Simplify right side
    14,359.42x = 173,795,870.58
  5. Step 5: Solve for x
    x = 173,795,870.58/14,359.42
  6. Step 6: Final answer
    x = 12,103.27

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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.