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Finding the Fourth Proportional to 15,874.10, 23,811.15 and 9,969.20

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Solution

The fourth proportional to 15,874.10, 23,811.15 and 9,969.20 is: 14,953.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,874.10 : 23,811.15 = 9,969.20 : x
  2. Step 2: Convert to fraction form
    15,874.10/23,811.15 = 9,969.20/x
  3. Step 3: Cross multiply
    15,874.10x = 23,811.15 × 9,969.20
  4. Step 4: Simplify right side
    15,874.10x = 237,378,116.58
  5. Step 5: Solve for x
    x = 237,378,116.58/15,874.10
  6. Step 6: Final answer
    x = 14,953.80

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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.