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Finding the Fourth Proportional to 8,682.06, 11,981.22 and 4,703.10

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Solution

The fourth proportional to 8,682.06, 11,981.22 and 4,703.10 is: 6,490.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,682.06 : 11,981.22 = 4,703.10 : x
  2. Step 2: Convert to fraction form
    8,682.06/11,981.22 = 4,703.10/x
  3. Step 3: Cross multiply
    8,682.06x = 11,981.22 × 4,703.10
  4. Step 4: Simplify right side
    8,682.06x = 56,348,875.78
  5. Step 5: Solve for x
    x = 56,348,875.78/8,682.06
  6. Step 6: Final answer
    x = 6,490.27

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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.