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Finding the Fourth Proportional to 8,666.01, 11,959.06 and 4,687.12

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Solution

The fourth proportional to 8,666.01, 11,959.06 and 4,687.12 is: 6,468.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,666.01 : 11,959.06 = 4,687.12 : x
  2. Step 2: Convert to fraction form
    8,666.01/11,959.06 = 4,687.12/x
  3. Step 3: Cross multiply
    8,666.01x = 11,959.06 × 4,687.12
  4. Step 4: Simplify right side
    8,666.01x = 56,053,474.28
  5. Step 5: Solve for x
    x = 56,053,474.28/8,666.01
  6. Step 6: Final answer
    x = 6,468.20

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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.