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Finding the Fourth Proportional to 13,274.58, 19,915.11 and 4,040.58

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Solution

The fourth proportional to 13,274.58, 19,915.11 and 4,040.58 is: 6,061.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,274.58 : 19,915.11 = 4,040.58 : x
  2. Step 2: Convert to fraction form
    13,274.58/19,915.11 = 4,040.58/x
  3. Step 3: Cross multiply
    13,274.58x = 19,915.11 × 4,040.58
  4. Step 4: Simplify right side
    13,274.58x = 80,468,595.16
  5. Step 5: Solve for x
    x = 80,468,595.16/13,274.58
  6. Step 6: Final answer
    x = 6,061.86

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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.