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Finding the Fourth Proportional to 8,727.64, 13,091.46 and 4,111

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Solution

The fourth proportional to 8,727.64, 13,091.46 and 4,111 is: 6,166.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,727.64 : 13,091.46 = 4,111 : x
  2. Step 2: Convert to fraction form
    8,727.64/13,091.46 = 4,111/x
  3. Step 3: Cross multiply
    8,727.64x = 13,091.46 × 4,111
  4. Step 4: Simplify right side
    8,727.64x = 53,818,992.06
  5. Step 5: Solve for x
    x = 53,818,992.06/8,727.64
  6. Step 6: Final answer
    x = 6,166.50

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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.