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Finding the Fourth Proportional to 25,700.58, 38,500.74 and 16,908.84

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Solution

The fourth proportional to 25,700.58, 38,500.74 and 16,908.84 is: 25,330.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,700.58 : 38,500.74 = 16,908.84 : x
  2. Step 2: Convert to fraction form
    25,700.58/38,500.74 = 16,908.84/x
  3. Step 3: Cross multiply
    25,700.58x = 38,500.74 × 16,908.84
  4. Step 4: Simplify right side
    25,700.58x = 651,002,852.54
  5. Step 5: Solve for x
    x = 651,002,852.54/25,700.58
  6. Step 6: Final answer
    x = 25,330.28

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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.