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Finding the Fourth Proportional to 18,596.90, 27,895.40 and 13,074.95

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Solution

The fourth proportional to 18,596.90, 27,895.40 and 13,074.95 is: 19,612.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,596.90 : 27,895.40 = 13,074.95 : x
  2. Step 2: Convert to fraction form
    18,596.90/27,895.40 = 13,074.95/x
  3. Step 3: Cross multiply
    18,596.90x = 27,895.40 × 13,074.95
  4. Step 4: Simplify right side
    18,596.90x = 364,730,755.38
  5. Step 5: Solve for x
    x = 364,730,755.38/18,596.90
  6. Step 6: Final answer
    x = 19,612.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.