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Finding the Fourth Proportional to 16,712.64, 23,064.48 and 9,260.64

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Solution

The fourth proportional to 16,712.64, 23,064.48 and 9,260.64 is: 12,780.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,712.64 : 23,064.48 = 9,260.64 : x
  2. Step 2: Convert to fraction form
    16,712.64/23,064.48 = 9,260.64/x
  3. Step 3: Cross multiply
    16,712.64x = 23,064.48 × 9,260.64
  4. Step 4: Simplify right side
    16,712.64x = 213,591,846.07
  5. Step 5: Solve for x
    x = 213,591,846.07/16,712.64
  6. Step 6: Final answer
    x = 12,780.26

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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.