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Finding the Fourth Proportional to 17,726.80, 26,590.20 and 14,616.40

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Solution

The fourth proportional to 17,726.80, 26,590.20 and 14,616.40 is: 21,924.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,726.80 : 26,590.20 = 14,616.40 : x
  2. Step 2: Convert to fraction form
    17,726.80/26,590.20 = 14,616.40/x
  3. Step 3: Cross multiply
    17,726.80x = 26,590.20 × 14,616.40
  4. Step 4: Simplify right side
    17,726.80x = 388,652,999.28
  5. Step 5: Solve for x
    x = 388,652,999.28/17,726.80
  6. Step 6: Final answer
    x = 21,924.60

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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.