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Finding the Fourth Proportional to 14,581.67, 21,871.75 and 8,256.99

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Solution

The fourth proportional to 14,581.67, 21,871.75 and 8,256.99 is: 12,385.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,581.67 : 21,871.75 = 8,256.99 : x
  2. Step 2: Convert to fraction form
    14,581.67/21,871.75 = 8,256.99/x
  3. Step 3: Cross multiply
    14,581.67x = 21,871.75 × 8,256.99
  4. Step 4: Simplify right side
    14,581.67x = 180,594,751.64
  5. Step 5: Solve for x
    x = 180,594,751.64/14,581.67
  6. Step 6: Final answer
    x = 12,385.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.