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Finding the Fourth Proportional to 15,874.91, 23,805.48 and 8,477.72

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Solution

The fourth proportional to 15,874.91, 23,805.48 and 8,477.72 is: 12,712.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,874.91 : 23,805.48 = 8,477.72 : x
  2. Step 2: Convert to fraction form
    15,874.91/23,805.48 = 8,477.72/x
  3. Step 3: Cross multiply
    15,874.91x = 23,805.48 × 8,477.72
  4. Step 4: Simplify right side
    15,874.91x = 201,816,193.91
  5. Step 5: Solve for x
    x = 201,816,193.91/15,874.91
  6. Step 6: Final answer
    x = 12,712.90

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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.