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Finding the Fourth Proportional to 14,481.64, 21,726.87 and 7,085.03

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Solution

The fourth proportional to 14,481.64, 21,726.87 and 7,085.03 is: 10,629.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,481.64 : 21,726.87 = 7,085.03 : x
  2. Step 2: Convert to fraction form
    14,481.64/21,726.87 = 7,085.03/x
  3. Step 3: Cross multiply
    14,481.64x = 21,726.87 × 7,085.03
  4. Step 4: Simplify right side
    14,481.64x = 153,935,490.33
  5. Step 5: Solve for x
    x = 153,935,490.33/14,481.64
  6. Step 6: Final answer
    x = 10,629.70

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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.