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Finding the Fourth Proportional to 9,642.64, 14,467.02 and 5,939.74

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Solution

The fourth proportional to 9,642.64, 14,467.02 and 5,939.74 is: 8,911.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,642.64 : 14,467.02 = 5,939.74 : x
  2. Step 2: Convert to fraction form
    9,642.64/14,467.02 = 5,939.74/x
  3. Step 3: Cross multiply
    9,642.64x = 14,467.02 × 5,939.74
  4. Step 4: Simplify right side
    9,642.64x = 85,930,337.37
  5. Step 5: Solve for x
    x = 85,930,337.37/9,642.64
  6. Step 6: Final answer
    x = 8,911.49

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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.