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Finding the Fourth Proportional to 25,191.54, 37,787.13 and 7,661.34

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Solution

The fourth proportional to 25,191.54, 37,787.13 and 7,661.34 is: 11,491.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,191.54 : 37,787.13 = 7,661.34 : x
  2. Step 2: Convert to fraction form
    25,191.54/37,787.13 = 7,661.34/x
  3. Step 3: Cross multiply
    25,191.54x = 37,787.13 × 7,661.34
  4. Step 4: Simplify right side
    25,191.54x = 289,500,050.55
  5. Step 5: Solve for x
    x = 289,500,050.55/25,191.54
  6. Step 6: Final answer
    x = 11,491.96

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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.