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Finding the Fourth Proportional to 45,770.40, 68,655.60 and 16,221.60

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Solution

The fourth proportional to 45,770.40, 68,655.60 and 16,221.60 is: 24,332.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,770.40 : 68,655.60 = 16,221.60 : x
  2. Step 2: Convert to fraction form
    45,770.40/68,655.60 = 16,221.60/x
  3. Step 3: Cross multiply
    45,770.40x = 68,655.60 × 16,221.60
  4. Step 4: Simplify right side
    45,770.40x = 1,113,703,680.96
  5. Step 5: Solve for x
    x = 1,113,703,680.96/45,770.40
  6. Step 6: Final answer
    x = 24,332.40

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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.