Home / 25,915.05-38,872.58-8,384.45

Finding the Fourth Proportional to 25,915.05, 38,872.58 and 8,384.45

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Solution

The fourth proportional to 25,915.05, 38,872.58 and 8,384.45 is: 12,576.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,915.05 : 38,872.58 = 8,384.45 : x
  2. Step 2: Convert to fraction form
    25,915.05/38,872.58 = 8,384.45/x
  3. Step 3: Cross multiply
    25,915.05x = 38,872.58 × 8,384.45
  4. Step 4: Simplify right side
    25,915.05x = 325,924,967.10
  5. Step 5: Solve for x
    x = 325,924,967.10/25,915.05
  6. Step 6: Final answer
    x = 12,576.67

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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.