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Finding the Fourth Proportional to 16,041.60, 22,137.88 and 8,871.74

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Solution

The fourth proportional to 16,041.60, 22,137.88 and 8,871.74 is: 12,243.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,041.60 : 22,137.88 = 8,871.74 : x
  2. Step 2: Convert to fraction form
    16,041.60/22,137.88 = 8,871.74/x
  3. Step 3: Cross multiply
    16,041.60x = 22,137.88 × 8,871.74
  4. Step 4: Simplify right side
    16,041.60x = 196,401,415.91
  5. Step 5: Solve for x
    x = 196,401,415.91/16,041.60
  6. Step 6: Final answer
    x = 12,243.25

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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.