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Finding the Fourth Proportional to 6,645.28, 9,967.92 and 1,714.92

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Solution

The fourth proportional to 6,645.28, 9,967.92 and 1,714.92 is: 2,572.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,645.28 : 9,967.92 = 1,714.92 : x
  2. Step 2: Convert to fraction form
    6,645.28/9,967.92 = 1,714.92/x
  3. Step 3: Cross multiply
    6,645.28x = 9,967.92 × 1,714.92
  4. Step 4: Simplify right side
    6,645.28x = 17,094,185.37
  5. Step 5: Solve for x
    x = 17,094,185.37/6,645.28
  6. Step 6: Final answer
    x = 2,572.38

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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.