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Finding the Fourth Proportional to 8,674.34, 11,970.61 and 4,695.49

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Solution

The fourth proportional to 8,674.34, 11,970.61 and 4,695.49 is: 6,479.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,674.34 : 11,970.61 = 4,695.49 : x
  2. Step 2: Convert to fraction form
    8,674.34/11,970.61 = 4,695.49/x
  3. Step 3: Cross multiply
    8,674.34x = 11,970.61 × 4,695.49
  4. Step 4: Simplify right side
    8,674.34x = 56,207,879.55
  5. Step 5: Solve for x
    x = 56,207,879.55/8,674.34
  6. Step 6: Final answer
    x = 6,479.79

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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.