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Finding the Fourth Proportional to 9,515.70, 14,273.55 and 9,272.70

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Solution

The fourth proportional to 9,515.70, 14,273.55 and 9,272.70 is: 13,909.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,515.70 : 14,273.55 = 9,272.70 : x
  2. Step 2: Convert to fraction form
    9,515.70/14,273.55 = 9,272.70/x
  3. Step 3: Cross multiply
    9,515.70x = 14,273.55 × 9,272.70
  4. Step 4: Simplify right side
    9,515.70x = 132,354,347.09
  5. Step 5: Solve for x
    x = 132,354,347.09/9,515.70
  6. Step 6: Final answer
    x = 13,909.05

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Double scale
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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.