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Finding the Fourth Proportional to 7,703.55, 10,630.86 and 4,166.75

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Solution

The fourth proportional to 7,703.55, 10,630.86 and 4,166.75 is: 5,750.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,703.55 : 10,630.86 = 4,166.75 : x
  2. Step 2: Convert to fraction form
    7,703.55/10,630.86 = 4,166.75/x
  3. Step 3: Cross multiply
    7,703.55x = 10,630.86 × 4,166.75
  4. Step 4: Simplify right side
    7,703.55x = 44,296,135.91
  5. Step 5: Solve for x
    x = 44,296,135.91/7,703.55
  6. Step 6: Final answer
    x = 5,750.09

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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.