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Finding the Fourth Proportional to 13,274.65, 19,915.44 and 4,954.74

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Solution

The fourth proportional to 13,274.65, 19,915.44 and 4,954.74 is: 7,433.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,274.65 : 19,915.44 = 4,954.74 : x
  2. Step 2: Convert to fraction form
    13,274.65/19,915.44 = 4,954.74/x
  3. Step 3: Cross multiply
    13,274.65x = 19,915.44 × 4,954.74
  4. Step 4: Simplify right side
    13,274.65x = 98,675,727.61
  5. Step 5: Solve for x
    x = 98,675,727.61/13,274.65
  6. Step 6: Final answer
    x = 7,433.40

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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.