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Finding the Fourth Proportional to 18,829, 25,984.02 and 10,445.56

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Solution

The fourth proportional to 18,829, 25,984.02 and 10,445.56 is: 14,414.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,829 : 25,984.02 = 10,445.56 : x
  2. Step 2: Convert to fraction form
    18,829/25,984.02 = 10,445.56/x
  3. Step 3: Cross multiply
    18,829x = 25,984.02 × 10,445.56
  4. Step 4: Simplify right side
    18,829x = 271,417,639.95
  5. Step 5: Solve for x
    x = 271,417,639.95/18,829
  6. Step 6: Final answer
    x = 14,414.87

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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.