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Finding the Fourth Proportional to 7,697.70, 10,622.76 and 4,160.88

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Solution

The fourth proportional to 7,697.70, 10,622.76 and 4,160.88 is: 5,741.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,697.70 : 10,622.76 = 4,160.88 : x
  2. Step 2: Convert to fraction form
    7,697.70/10,622.76 = 4,160.88/x
  3. Step 3: Cross multiply
    7,697.70x = 10,622.76 × 4,160.88
  4. Step 4: Simplify right side
    7,697.70x = 44,200,029.63
  5. Step 5: Solve for x
    x = 44,200,029.63/7,697.70
  6. Step 6: Final answer
    x = 5,741.98

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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.