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Finding the Fourth Proportional to 40,958.60, 61,437.90 and 14,664.20

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Solution

The fourth proportional to 40,958.60, 61,437.90 and 14,664.20 is: 21,996.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,958.60 : 61,437.90 = 14,664.20 : x
  2. Step 2: Convert to fraction form
    40,958.60/61,437.90 = 14,664.20/x
  3. Step 3: Cross multiply
    40,958.60x = 61,437.90 × 14,664.20
  4. Step 4: Simplify right side
    40,958.60x = 900,937,653.18
  5. Step 5: Solve for x
    x = 900,937,653.18/40,958.60
  6. Step 6: Final answer
    x = 21,996.30

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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.