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Finding the Fourth Proportional to 18,892.72, 26,058.70 and 16,370.36

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Solution

The fourth proportional to 18,892.72, 26,058.70 and 16,370.36 is: 22,579.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,892.72 : 26,058.70 = 16,370.36 : x
  2. Step 2: Convert to fraction form
    18,892.72/26,058.70 = 16,370.36/x
  3. Step 3: Cross multiply
    18,892.72x = 26,058.70 × 16,370.36
  4. Step 4: Simplify right side
    18,892.72x = 426,590,300.13
  5. Step 5: Solve for x
    x = 426,590,300.13/18,892.72
  6. Step 6: Final answer
    x = 22,579.61

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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.