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Finding the Fourth Proportional to 18,097.70, 24,975.50 and 10,139.63

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Solution

The fourth proportional to 18,097.70, 24,975.50 and 10,139.63 is: 13,993.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,097.70 : 24,975.50 = 10,139.63 : x
  2. Step 2: Convert to fraction form
    18,097.70/24,975.50 = 10,139.63/x
  3. Step 3: Cross multiply
    18,097.70x = 24,975.50 × 10,139.63
  4. Step 4: Simplify right side
    18,097.70x = 253,242,153.49
  5. Step 5: Solve for x
    x = 253,242,153.49/18,097.70
  6. Step 6: Final answer
    x = 13,993.06

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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.