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Finding the Fourth Proportional to 18,927.29, 26,119.64 and 10,543.79

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Solution

The fourth proportional to 18,927.29, 26,119.64 and 10,543.79 is: 14,550.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,927.29 : 26,119.64 = 10,543.79 : x
  2. Step 2: Convert to fraction form
    18,927.29/26,119.64 = 10,543.79/x
  3. Step 3: Cross multiply
    18,927.29x = 26,119.64 × 10,543.79
  4. Step 4: Simplify right side
    18,927.29x = 275,400,090.69
  5. Step 5: Solve for x
    x = 275,400,090.69/18,927.29
  6. Step 6: Final answer
    x = 14,550.42

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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.