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Finding the Fourth Proportional to 25,170.30, 37,760.94 and 7,641.50

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Solution

The fourth proportional to 25,170.30, 37,760.94 and 7,641.50 is: 11,463.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,170.30 : 37,760.94 = 7,641.50 : x
  2. Step 2: Convert to fraction form
    25,170.30/37,760.94 = 7,641.50/x
  3. Step 3: Cross multiply
    25,170.30x = 37,760.94 × 7,641.50
  4. Step 4: Simplify right side
    25,170.30x = 288,550,034.21
  5. Step 5: Solve for x
    x = 288,550,034.21/25,170.30
  6. Step 6: Final answer
    x = 11,463.91

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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.