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Finding the Fourth Proportional to 18,883.52, 26,058.74 and 10,385.65

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Solution

The fourth proportional to 18,883.52, 26,058.74 and 10,385.65 is: 14,331.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,883.52 : 26,058.74 = 10,385.65 : x
  2. Step 2: Convert to fraction form
    18,883.52/26,058.74 = 10,385.65/x
  3. Step 3: Cross multiply
    18,883.52x = 26,058.74 × 10,385.65
  4. Step 4: Simplify right side
    18,883.52x = 270,636,874.95
  5. Step 5: Solve for x
    x = 270,636,874.95/18,883.52
  6. Step 6: Final answer
    x = 14,331.91

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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.