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Finding the Fourth Proportional to 12,263.70, 16,870.78 and 10,744.41

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Solution

The fourth proportional to 12,263.70, 16,870.78 and 10,744.41 is: 14,780.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,263.70 : 16,870.78 = 10,744.41 : x
  2. Step 2: Convert to fraction form
    12,263.70/16,870.78 = 10,744.41/x
  3. Step 3: Cross multiply
    12,263.70x = 16,870.78 × 10,744.41
  4. Step 4: Simplify right side
    12,263.70x = 181,266,654.04
  5. Step 5: Solve for x
    x = 181,266,654.04/12,263.70
  6. Step 6: Final answer
    x = 14,780.74

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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.