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Finding the Fourth Proportional to 9,157.84, 13,736.76 and 3,314.32

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Solution

The fourth proportional to 9,157.84, 13,736.76 and 3,314.32 is: 4,971.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,157.84 : 13,736.76 = 3,314.32 : x
  2. Step 2: Convert to fraction form
    9,157.84/13,736.76 = 3,314.32/x
  3. Step 3: Cross multiply
    9,157.84x = 13,736.76 × 3,314.32
  4. Step 4: Simplify right side
    9,157.84x = 45,528,018.40
  5. Step 5: Solve for x
    x = 45,528,018.40/9,157.84
  6. Step 6: Final answer
    x = 4,971.48

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Similar ratio
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1.5x scale

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.