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Finding the Fourth Proportional to 7,098.02, 9,795.56 and 3,954.20

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Solution

The fourth proportional to 7,098.02, 9,795.56 and 3,954.20 is: 5,456.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,098.02 : 9,795.56 = 3,954.20 : x
  2. Step 2: Convert to fraction form
    7,098.02/9,795.56 = 3,954.20/x
  3. Step 3: Cross multiply
    7,098.02x = 9,795.56 × 3,954.20
  4. Step 4: Simplify right side
    7,098.02x = 38,733,603.35
  5. Step 5: Solve for x
    x = 38,733,603.35/7,098.02
  6. Step 6: Final answer
    x = 5,456.96

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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.