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Finding the Fourth Proportional to 16,417.64, 24,621.60 and 8,622.20

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Solution

The fourth proportional to 16,417.64, 24,621.60 and 8,622.20 is: 12,930.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,417.64 : 24,621.60 = 8,622.20 : x
  2. Step 2: Convert to fraction form
    16,417.64/24,621.60 = 8,622.20/x
  3. Step 3: Cross multiply
    16,417.64x = 24,621.60 × 8,622.20
  4. Step 4: Simplify right side
    16,417.64x = 212,292,359.52
  5. Step 5: Solve for x
    x = 212,292,359.52/16,417.64
  6. Step 6: Final answer
    x = 12,930.75

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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.