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Finding the Fourth Proportional to 7,054.69, 9,735.53 and 3,910.88

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Solution

The fourth proportional to 7,054.69, 9,735.53 and 3,910.88 is: 5,397.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,054.69 : 9,735.53 = 3,910.88 : x
  2. Step 2: Convert to fraction form
    7,054.69/9,735.53 = 3,910.88/x
  3. Step 3: Cross multiply
    7,054.69x = 9,735.53 × 3,910.88
  4. Step 4: Simplify right side
    7,054.69x = 38,074,489.57
  5. Step 5: Solve for x
    x = 38,074,489.57/7,054.69
  6. Step 6: Final answer
    x = 5,397.05

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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.