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Finding the Fourth Proportional to 7,705.66, 10,633.79 and 4,168.93

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Solution

The fourth proportional to 7,705.66, 10,633.79 and 4,168.93 is: 5,753.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,705.66 : 10,633.79 = 4,168.93 : x
  2. Step 2: Convert to fraction form
    7,705.66/10,633.79 = 4,168.93/x
  3. Step 3: Cross multiply
    7,705.66x = 10,633.79 × 4,168.93
  4. Step 4: Simplify right side
    7,705.66x = 44,331,452.13
  5. Step 5: Solve for x
    x = 44,331,452.13/7,705.66
  6. Step 6: Final answer
    x = 5,753.11

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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.