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Finding the Fourth Proportional to 45,697.60, 68,530.20 and 16,116.40

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Solution

The fourth proportional to 45,697.60, 68,530.20 and 16,116.40 is: 24,168.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,697.60 : 68,530.20 = 16,116.40 : x
  2. Step 2: Convert to fraction form
    45,697.60/68,530.20 = 16,116.40/x
  3. Step 3: Cross multiply
    45,697.60x = 68,530.20 × 16,116.40
  4. Step 4: Simplify right side
    45,697.60x = 1,104,460,115.28
  5. Step 5: Solve for x
    x = 1,104,460,115.28/45,697.60
  6. Step 6: Final answer
    x = 24,168.89

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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.