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Finding the Fourth Proportional to 9,157.84, 13,736.60 and 4,772.88

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Solution

The fourth proportional to 9,157.84, 13,736.60 and 4,772.88 is: 7,159.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,157.84 : 13,736.60 = 4,772.88 : x
  2. Step 2: Convert to fraction form
    9,157.84/13,736.60 = 4,772.88/x
  3. Step 3: Cross multiply
    9,157.84x = 13,736.60 × 4,772.88
  4. Step 4: Simplify right side
    9,157.84x = 65,563,143.41
  5. Step 5: Solve for x
    x = 65,563,143.41/9,157.84
  6. Step 6: Final answer
    x = 7,159.24

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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.