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Finding the Fourth Proportional to 45,866.67, 68,792.62 and 12,579.01

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Solution

The fourth proportional to 45,866.67, 68,792.62 and 12,579.01 is: 18,866.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,866.67 : 68,792.62 = 12,579.01 : x
  2. Step 2: Convert to fraction form
    45,866.67/68,792.62 = 12,579.01/x
  3. Step 3: Cross multiply
    45,866.67x = 68,792.62 × 12,579.01
  4. Step 4: Simplify right side
    45,866.67x = 865,343,054.91
  5. Step 5: Solve for x
    x = 865,343,054.91/45,866.67
  6. Step 6: Final answer
    x = 18,866.49

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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.