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Finding the Fourth Proportional to 15,128.01, 22,672.31 and 7,726.23

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Solution

The fourth proportional to 15,128.01, 22,672.31 and 7,726.23 is: 11,579.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,128.01 : 22,672.31 = 7,726.23 : x
  2. Step 2: Convert to fraction form
    15,128.01/22,672.31 = 7,726.23/x
  3. Step 3: Cross multiply
    15,128.01x = 22,672.31 × 7,726.23
  4. Step 4: Simplify right side
    15,128.01x = 175,171,443.06
  5. Step 5: Solve for x
    x = 175,171,443.06/15,128.01
  6. Step 6: Final answer
    x = 11,579.28

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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.