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Finding the Fourth Proportional to 7,094.60, 9,760.74 and 6,900.20

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Solution

The fourth proportional to 7,094.60, 9,760.74 and 6,900.20 is: 9,493.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,094.60 : 9,760.74 = 6,900.20 : x
  2. Step 2: Convert to fraction form
    7,094.60/9,760.74 = 6,900.20/x
  3. Step 3: Cross multiply
    7,094.60x = 9,760.74 × 6,900.20
  4. Step 4: Simplify right side
    7,094.60x = 67,351,058.15
  5. Step 5: Solve for x
    x = 67,351,058.15/7,094.60
  6. Step 6: Final answer
    x = 9,493.28

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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.