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Finding the Fourth Proportional to 18,701.19, 25,810.85 and 17,860.41

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Solution

The fourth proportional to 18,701.19, 25,810.85 and 17,860.41 is: 24,650.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,701.19 : 25,810.85 = 17,860.41 : x
  2. Step 2: Convert to fraction form
    18,701.19/25,810.85 = 17,860.41/x
  3. Step 3: Cross multiply
    18,701.19x = 25,810.85 × 17,860.41
  4. Step 4: Simplify right side
    18,701.19x = 460,992,408.10
  5. Step 5: Solve for x
    x = 460,992,408.10/18,701.19
  6. Step 6: Final answer
    x = 24,650.43

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Half scale
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Double scale
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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.