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Finding the Fourth Proportional to 40,672.62, 61,007.12 and 11,090.45

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Solution

The fourth proportional to 40,672.62, 61,007.12 and 11,090.45 is: 16,635.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,672.62 : 61,007.12 = 11,090.45 : x
  2. Step 2: Convert to fraction form
    40,672.62/61,007.12 = 11,090.45/x
  3. Step 3: Cross multiply
    40,672.62x = 61,007.12 × 11,090.45
  4. Step 4: Simplify right side
    40,672.62x = 676,596,414.00
  5. Step 5: Solve for x
    x = 676,596,414.00/40,672.62
  6. Step 6: Final answer
    x = 16,635.18

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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.