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Finding the Fourth Proportional to 19,558.92, 26,991.54 and 10,726.92

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Solution

The fourth proportional to 19,558.92, 26,991.54 and 10,726.92 is: 14,803.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,558.92 : 26,991.54 = 10,726.92 : x
  2. Step 2: Convert to fraction form
    19,558.92/26,991.54 = 10,726.92/x
  3. Step 3: Cross multiply
    19,558.92x = 26,991.54 × 10,726.92
  4. Step 4: Simplify right side
    19,558.92x = 289,536,090.26
  5. Step 5: Solve for x
    x = 289,536,090.26/19,558.92
  6. Step 6: Final answer
    x = 14,803.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.