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Finding the Fourth Proportional to 17,145.66, 25,714.89 and 6,612.06

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Solution

The fourth proportional to 17,145.66, 25,714.89 and 6,612.06 is: 9,916.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,145.66 : 25,714.89 = 6,612.06 : x
  2. Step 2: Convert to fraction form
    17,145.66/25,714.89 = 6,612.06/x
  3. Step 3: Cross multiply
    17,145.66x = 25,714.89 × 6,612.06
  4. Step 4: Simplify right side
    17,145.66x = 170,028,395.57
  5. Step 5: Solve for x
    x = 170,028,395.57/17,145.66
  6. Step 6: Final answer
    x = 9,916.70

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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.