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Finding the Fourth Proportional to 17,888.45, 26,842.39 and 7,507.49

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Solution

The fourth proportional to 17,888.45, 26,842.39 and 7,507.49 is: 11,265.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,888.45 : 26,842.39 = 7,507.49 : x
  2. Step 2: Convert to fraction form
    17,888.45/26,842.39 = 7,507.49/x
  3. Step 3: Cross multiply
    17,888.45x = 26,842.39 × 7,507.49
  4. Step 4: Simplify right side
    17,888.45x = 201,518,821.52
  5. Step 5: Solve for x
    x = 201,518,821.52/17,888.45
  6. Step 6: Final answer
    x = 11,265.31

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1.5x scale

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.