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Finding the Fourth Proportional to 17,259.92, 25,915.80 and 9,872.72

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Solution

The fourth proportional to 17,259.92, 25,915.80 and 9,872.72 is: 14,823.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,259.92 : 25,915.80 = 9,872.72 : x
  2. Step 2: Convert to fraction form
    17,259.92/25,915.80 = 9,872.72/x
  3. Step 3: Cross multiply
    17,259.92x = 25,915.80 × 9,872.72
  4. Step 4: Simplify right side
    17,259.92x = 255,859,436.98
  5. Step 5: Solve for x
    x = 255,859,436.98/17,259.92
  6. Step 6: Final answer
    x = 14,823.91

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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.