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Finding the Fourth Proportional to 17,918.16, 26,726.06 and 15,559.62

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Solution

The fourth proportional to 17,918.16, 26,726.06 and 15,559.62 is: 23,208.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,918.16 : 26,726.06 = 15,559.62 : x
  2. Step 2: Convert to fraction form
    17,918.16/26,726.06 = 15,559.62/x
  3. Step 3: Cross multiply
    17,918.16x = 26,726.06 × 15,559.62
  4. Step 4: Simplify right side
    17,918.16x = 415,847,276.37
  5. Step 5: Solve for x
    x = 415,847,276.37/17,918.16
  6. Step 6: Final answer
    x = 23,208.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.