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Finding the Fourth Proportional to 11,310.57, 15,608.57 and 6,275.55

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Solution

The fourth proportional to 11,310.57, 15,608.57 and 6,275.55 is: 8,660.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,310.57 : 15,608.57 = 6,275.55 : x
  2. Step 2: Convert to fraction form
    11,310.57/15,608.57 = 6,275.55/x
  3. Step 3: Cross multiply
    11,310.57x = 15,608.57 × 6,275.55
  4. Step 4: Simplify right side
    11,310.57x = 97,952,361.46
  5. Step 5: Solve for x
    x = 97,952,361.46/11,310.57
  6. Step 6: Final answer
    x = 8,660.25

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Half scale
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Double scale
Find fourth proportional to 11,311.57, 15,609.95 and 6,276.55
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.