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Finding the Fourth Proportional to 8,684.80, 13,032.66 and 4,994.23

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Solution

The fourth proportional to 8,684.80, 13,032.66 and 4,994.23 is: 7,494.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,684.80 : 13,032.66 = 4,994.23 : x
  2. Step 2: Convert to fraction form
    8,684.80/13,032.66 = 4,994.23/x
  3. Step 3: Cross multiply
    8,684.80x = 13,032.66 × 4,994.23
  4. Step 4: Simplify right side
    8,684.80x = 65,088,101.55
  5. Step 5: Solve for x
    x = 65,088,101.55/8,684.80
  6. Step 6: Final answer
    x = 7,494.48

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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.