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Finding the Fourth Proportional to 5,296.39, 7,308.92 and 2,938.51

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Solution

The fourth proportional to 5,296.39, 7,308.92 and 2,938.51 is: 4,055.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,296.39 : 7,308.92 = 2,938.51 : x
  2. Step 2: Convert to fraction form
    5,296.39/7,308.92 = 2,938.51/x
  3. Step 3: Cross multiply
    5,296.39x = 7,308.92 × 2,938.51
  4. Step 4: Simplify right side
    5,296.39x = 21,477,319.82
  5. Step 5: Solve for x
    x = 21,477,319.82/5,296.39
  6. Step 6: Final answer
    x = 4,055.09

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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.