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Finding the Fourth Proportional to 15,598.89, 21,530.89 and 9,227.70

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Solution

The fourth proportional to 15,598.89, 21,530.89 and 9,227.70 is: 12,736.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,598.89 : 21,530.89 = 9,227.70 : x
  2. Step 2: Convert to fraction form
    15,598.89/21,530.89 = 9,227.70/x
  3. Step 3: Cross multiply
    15,598.89x = 21,530.89 × 9,227.70
  4. Step 4: Simplify right side
    15,598.89x = 198,680,489.84
  5. Step 5: Solve for x
    x = 198,680,489.84/15,598.89
  6. Step 6: Final answer
    x = 12,736.83

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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.