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Finding the Fourth Proportional to 18,151.95, 25,049.81 and 10,194.31

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Solution

The fourth proportional to 18,151.95, 25,049.81 and 10,194.31 is: 14,068.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,151.95 : 25,049.81 = 10,194.31 : x
  2. Step 2: Convert to fraction form
    18,151.95/25,049.81 = 10,194.31/x
  3. Step 3: Cross multiply
    18,151.95x = 25,049.81 × 10,194.31
  4. Step 4: Simplify right side
    18,151.95x = 255,365,387.13
  5. Step 5: Solve for x
    x = 255,365,387.13/18,151.95
  6. Step 6: Final answer
    x = 14,068.21

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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.