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Finding the Fourth Proportional to 8,693.91, 12,003.12 and 6,700.77

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Solution

The fourth proportional to 8,693.91, 12,003.12 and 6,700.77 is: 9,251.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,693.91 : 12,003.12 = 6,700.77 : x
  2. Step 2: Convert to fraction form
    8,693.91/12,003.12 = 6,700.77/x
  3. Step 3: Cross multiply
    8,693.91x = 12,003.12 × 6,700.77
  4. Step 4: Simplify right side
    8,693.91x = 80,430,146.40
  5. Step 5: Solve for x
    x = 80,430,146.40/8,693.91
  6. Step 6: Final answer
    x = 9,251.32

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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.