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Finding the Fourth Proportional to 18,312.60, 27,468.90 and 4,461.60

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Solution

The fourth proportional to 18,312.60, 27,468.90 and 4,461.60 is: 6,692.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,312.60 : 27,468.90 = 4,461.60 : x
  2. Step 2: Convert to fraction form
    18,312.60/27,468.90 = 4,461.60/x
  3. Step 3: Cross multiply
    18,312.60x = 27,468.90 × 4,461.60
  4. Step 4: Simplify right side
    18,312.60x = 122,555,244.24
  5. Step 5: Solve for x
    x = 122,555,244.24/18,312.60
  6. Step 6: Final answer
    x = 6,692.40

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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.