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Finding the Fourth Proportional to 45,851.53, 68,772.68 and 12,574.94

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Solution

The fourth proportional to 45,851.53, 68,772.68 and 12,574.94 is: 18,861.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,851.53 : 68,772.68 = 12,574.94 : x
  2. Step 2: Convert to fraction form
    45,851.53/68,772.68 = 12,574.94/x
  3. Step 3: Cross multiply
    45,851.53x = 68,772.68 × 12,574.94
  4. Step 4: Simplify right side
    45,851.53x = 864,812,012.21
  5. Step 5: Solve for x
    x = 864,812,012.21/45,851.53
  6. Step 6: Final answer
    x = 18,861.14

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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.