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Finding the Fourth Proportional to 15,262.56, 21,061.13 and 8,546.63

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Solution

The fourth proportional to 15,262.56, 21,061.13 and 8,546.63 is: 11,793.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,262.56 : 21,061.13 = 8,546.63 : x
  2. Step 2: Convert to fraction form
    15,262.56/21,061.13 = 8,546.63/x
  3. Step 3: Cross multiply
    15,262.56x = 21,061.13 × 8,546.63
  4. Step 4: Simplify right side
    15,262.56x = 180,001,537.45
  5. Step 5: Solve for x
    x = 180,001,537.45/15,262.56
  6. Step 6: Final answer
    x = 11,793.67

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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.