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Finding the Fourth Proportional to 5,611.25, 8,416.88 and 1,507.25

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Solution

The fourth proportional to 5,611.25, 8,416.88 and 1,507.25 is: 2,260.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,611.25 : 8,416.88 = 1,507.25 : x
  2. Step 2: Convert to fraction form
    5,611.25/8,416.88 = 1,507.25/x
  3. Step 3: Cross multiply
    5,611.25x = 8,416.88 × 1,507.25
  4. Step 4: Simplify right side
    5,611.25x = 12,686,342.38
  5. Step 5: Solve for x
    x = 12,686,342.38/5,611.25
  6. Step 6: Final answer
    x = 2,260.88

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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.