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Finding the Fourth Proportional to 14,251.64, 19,665.06 and 7,962.80

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Solution

The fourth proportional to 14,251.64, 19,665.06 and 7,962.80 is: 10,987.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,251.64 : 19,665.06 = 7,962.80 : x
  2. Step 2: Convert to fraction form
    14,251.64/19,665.06 = 7,962.80/x
  3. Step 3: Cross multiply
    14,251.64x = 19,665.06 × 7,962.80
  4. Step 4: Simplify right side
    14,251.64x = 156,588,939.77
  5. Step 5: Solve for x
    x = 156,588,939.77/14,251.64
  6. Step 6: Final answer
    x = 10,987.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.