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Finding the Fourth Proportional to 41,915.40, 62,871.30 and 14,213.40

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Solution

The fourth proportional to 41,915.40, 62,871.30 and 14,213.40 is: 21,319.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,915.40 : 62,871.30 = 14,213.40 : x
  2. Step 2: Convert to fraction form
    41,915.40/62,871.30 = 14,213.40/x
  3. Step 3: Cross multiply
    41,915.40x = 62,871.30 × 14,213.40
  4. Step 4: Simplify right side
    41,915.40x = 893,614,935.42
  5. Step 5: Solve for x
    x = 893,614,935.42/41,915.40
  6. Step 6: Final answer
    x = 21,319.49

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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.