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Finding the Fourth Proportional to 25,245.48, 37,868.43 and 7,715.64

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Solution

The fourth proportional to 25,245.48, 37,868.43 and 7,715.64 is: 11,573.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,245.48 : 37,868.43 = 7,715.64 : x
  2. Step 2: Convert to fraction form
    25,245.48/37,868.43 = 7,715.64/x
  3. Step 3: Cross multiply
    25,245.48x = 37,868.43 × 7,715.64
  4. Step 4: Simplify right side
    25,245.48x = 292,179,173.25
  5. Step 5: Solve for x
    x = 292,179,173.25/25,245.48
  6. Step 6: Final answer
    x = 11,573.52

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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.