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Finding the Fourth Proportional to 25,321.09, 37,978.12 and 6,599.61

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Solution

The fourth proportional to 25,321.09, 37,978.12 and 6,599.61 is: 9,898.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,321.09 : 37,978.12 = 6,599.61 : x
  2. Step 2: Convert to fraction form
    25,321.09/37,978.12 = 6,599.61/x
  3. Step 3: Cross multiply
    25,321.09x = 37,978.12 × 6,599.61
  4. Step 4: Simplify right side
    25,321.09x = 250,640,780.53
  5. Step 5: Solve for x
    x = 250,640,780.53/25,321.09
  6. Step 6: Final answer
    x = 9,898.50

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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.