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Finding the Fourth Proportional to 8,606.05, 11,860.25 and 6,714.63

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Solution

The fourth proportional to 8,606.05, 11,860.25 and 6,714.63 is: 9,253.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,606.05 : 11,860.25 = 6,714.63 : x
  2. Step 2: Convert to fraction form
    8,606.05/11,860.25 = 6,714.63/x
  3. Step 3: Cross multiply
    8,606.05x = 11,860.25 × 6,714.63
  4. Step 4: Simplify right side
    8,606.05x = 79,637,156.88
  5. Step 5: Solve for x
    x = 79,637,156.88/8,606.05
  6. Step 6: Final answer
    x = 9,253.63

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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.