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Finding the Fourth Proportional to 7,098.88, 9,797.12 and 3,955.04

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Solution

The fourth proportional to 7,098.88, 9,797.12 and 3,955.04 is: 5,458.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,098.88 : 9,797.12 = 3,955.04 : x
  2. Step 2: Convert to fraction form
    7,098.88/9,797.12 = 3,955.04/x
  3. Step 3: Cross multiply
    7,098.88x = 9,797.12 × 3,955.04
  4. Step 4: Simplify right side
    7,098.88x = 38,748,001.48
  5. Step 5: Solve for x
    x = 38,748,001.48/7,098.88
  6. Step 6: Final answer
    x = 5,458.33

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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.