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Finding the Fourth Proportional to 25,308.61, 37,962.91 and 7,539.54

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Solution

The fourth proportional to 25,308.61, 37,962.91 and 7,539.54 is: 11,309.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,308.61 : 37,962.91 = 7,539.54 : x
  2. Step 2: Convert to fraction form
    25,308.61/37,962.91 = 7,539.54/x
  3. Step 3: Cross multiply
    25,308.61x = 37,962.91 × 7,539.54
  4. Step 4: Simplify right side
    25,308.61x = 286,222,745.52
  5. Step 5: Solve for x
    x = 286,222,745.52/25,308.61
  6. Step 6: Final answer
    x = 11,309.30

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Similar ratio
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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.