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Finding the Fourth Proportional to 40,912.60, 61,368.90 and 23,384.20

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Solution

The fourth proportional to 40,912.60, 61,368.90 and 23,384.20 is: 35,076.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,912.60 : 61,368.90 = 23,384.20 : x
  2. Step 2: Convert to fraction form
    40,912.60/61,368.90 = 23,384.20/x
  3. Step 3: Cross multiply
    40,912.60x = 61,368.90 × 23,384.20
  4. Step 4: Simplify right side
    40,912.60x = 1,435,062,631.38
  5. Step 5: Solve for x
    x = 1,435,062,631.38/40,912.60
  6. Step 6: Final answer
    x = 35,076.30

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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.