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Finding the Fourth Proportional to 46,011.70, 68,981.10 and 19,694.80

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Solution

The fourth proportional to 46,011.70, 68,981.10 and 19,694.80 is: 29,526.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,011.70 : 68,981.10 = 19,694.80 : x
  2. Step 2: Convert to fraction form
    46,011.70/68,981.10 = 19,694.80/x
  3. Step 3: Cross multiply
    46,011.70x = 68,981.10 × 19,694.80
  4. Step 4: Simplify right side
    46,011.70x = 1,358,568,968.28
  5. Step 5: Solve for x
    x = 1,358,568,968.28/46,011.70
  6. Step 6: Final answer
    x = 29,526.60

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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.