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Finding the Fourth Proportional to 7,700.88, 11,554.45 and 2,770.91

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Solution

The fourth proportional to 7,700.88, 11,554.45 and 2,770.91 is: 4,157.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,700.88 : 11,554.45 = 2,770.91 : x
  2. Step 2: Convert to fraction form
    7,700.88/11,554.45 = 2,770.91/x
  3. Step 3: Cross multiply
    7,700.88x = 11,554.45 × 2,770.91
  4. Step 4: Simplify right side
    7,700.88x = 32,016,276.35
  5. Step 5: Solve for x
    x = 32,016,276.35/7,700.88
  6. Step 6: Final answer
    x = 4,157.48

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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.