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Finding the Fourth Proportional to 18,481, 25,503.78 and 10,097.56

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Solution

The fourth proportional to 18,481, 25,503.78 and 10,097.56 is: 13,934.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,481 : 25,503.78 = 10,097.56 : x
  2. Step 2: Convert to fraction form
    18,481/25,503.78 = 10,097.56/x
  3. Step 3: Cross multiply
    18,481x = 25,503.78 × 10,097.56
  4. Step 4: Simplify right side
    18,481x = 257,525,948.78
  5. Step 5: Solve for x
    x = 257,525,948.78/18,481
  6. Step 6: Final answer
    x = 13,934.63

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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.