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Finding the Fourth Proportional to 25,390.76, 38,073.84 and 12,735.08

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Solution

The fourth proportional to 25,390.76, 38,073.84 and 12,735.08 is: 19,096.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,390.76 : 38,073.84 = 12,735.08 : x
  2. Step 2: Convert to fraction form
    25,390.76/38,073.84 = 12,735.08/x
  3. Step 3: Cross multiply
    25,390.76x = 38,073.84 × 12,735.08
  4. Step 4: Simplify right side
    25,390.76x = 484,873,493.49
  5. Step 5: Solve for x
    x = 484,873,493.49/25,390.76
  6. Step 6: Final answer
    x = 19,096.45

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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.