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Finding the Fourth Proportional to 9,792.96, 14,686.65 and 2,772.51

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Solution

The fourth proportional to 9,792.96, 14,686.65 and 2,772.51 is: 4,157.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,792.96 : 14,686.65 = 2,772.51 : x
  2. Step 2: Convert to fraction form
    9,792.96/14,686.65 = 2,772.51/x
  3. Step 3: Cross multiply
    9,792.96x = 14,686.65 × 2,772.51
  4. Step 4: Simplify right side
    9,792.96x = 40,718,883.99
  5. Step 5: Solve for x
    x = 40,718,883.99/9,792.96
  6. Step 6: Final answer
    x = 4,157.98

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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.