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Finding the Fourth Proportional to 9,697.65, 14,546.47 and 2,772.15

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Solution

The fourth proportional to 9,697.65, 14,546.47 and 2,772.15 is: 4,158.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,697.65 : 14,546.47 = 2,772.15 : x
  2. Step 2: Convert to fraction form
    9,697.65/14,546.47 = 2,772.15/x
  3. Step 3: Cross multiply
    9,697.65x = 14,546.47 × 2,772.15
  4. Step 4: Simplify right side
    9,697.65x = 40,324,996.81
  5. Step 5: Solve for x
    x = 40,324,996.81/9,697.65
  6. Step 6: Final answer
    x = 4,158.22

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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.