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Finding the Fourth Proportional to 45,933.60, 68,900.40 and 40,922.40

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Solution

The fourth proportional to 45,933.60, 68,900.40 and 40,922.40 is: 61,383.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,933.60 : 68,900.40 = 40,922.40 : x
  2. Step 2: Convert to fraction form
    45,933.60/68,900.40 = 40,922.40/x
  3. Step 3: Cross multiply
    45,933.60x = 68,900.40 × 40,922.40
  4. Step 4: Simplify right side
    45,933.60x = 2,819,569,728.96
  5. Step 5: Solve for x
    x = 2,819,569,728.96/45,933.60
  6. Step 6: Final answer
    x = 61,383.60

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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.