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Finding the Fourth Proportional to 17,574.80, 26,358.08 and 5,091.48

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Solution

The fourth proportional to 17,574.80, 26,358.08 and 5,091.48 is: 7,636.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,574.80 : 26,358.08 = 5,091.48 : x
  2. Step 2: Convert to fraction form
    17,574.80/26,358.08 = 5,091.48/x
  3. Step 3: Cross multiply
    17,574.80x = 26,358.08 × 5,091.48
  4. Step 4: Simplify right side
    17,574.80x = 134,201,637.16
  5. Step 5: Solve for x
    x = 134,201,637.16/17,574.80
  6. Step 6: Final answer
    x = 7,636.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.