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Finding the Fourth Proportional to 14,326.68, 19,770.72 and 8,039.10

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Solution

The fourth proportional to 14,326.68, 19,770.72 and 8,039.10 is: 11,093.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,326.68 : 19,770.72 = 8,039.10 : x
  2. Step 2: Convert to fraction form
    14,326.68/19,770.72 = 8,039.10/x
  3. Step 3: Cross multiply
    14,326.68x = 19,770.72 × 8,039.10
  4. Step 4: Simplify right side
    14,326.68x = 158,938,795.15
  5. Step 5: Solve for x
    x = 158,938,795.15/14,326.68
  6. Step 6: Final answer
    x = 11,093.90

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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.