Home / 25,445.62-38,174.94-7,915.60

Finding the Fourth Proportional to 25,445.62, 38,174.94 and 7,915.60

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Solution

The fourth proportional to 25,445.62, 38,174.94 and 7,915.60 is: 11,875.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,445.62 : 38,174.94 = 7,915.60 : x
  2. Step 2: Convert to fraction form
    25,445.62/38,174.94 = 7,915.60/x
  3. Step 3: Cross multiply
    25,445.62x = 38,174.94 × 7,915.60
  4. Step 4: Simplify right side
    25,445.62x = 302,177,555.06
  5. Step 5: Solve for x
    x = 302,177,555.06/25,445.62
  6. Step 6: Final answer
    x = 11,875.43

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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.