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Finding the Fourth Proportional to 45,776.40, 68,664.60 and 36,560.40

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Solution

The fourth proportional to 45,776.40, 68,664.60 and 36,560.40 is: 54,840.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,776.40 : 68,664.60 = 36,560.40 : x
  2. Step 2: Convert to fraction form
    45,776.40/68,664.60 = 36,560.40/x
  3. Step 3: Cross multiply
    45,776.40x = 68,664.60 × 36,560.40
  4. Step 4: Simplify right side
    45,776.40x = 2,510,405,241.84
  5. Step 5: Solve for x
    x = 2,510,405,241.84/45,776.40
  6. Step 6: Final answer
    x = 54,840.60

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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.