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Finding the Fourth Proportional to 7,712.21, 11,541.99 and 4,899.62

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Solution

The fourth proportional to 7,712.21, 11,541.99 and 4,899.62 is: 7,332.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,712.21 : 11,541.99 = 4,899.62 : x
  2. Step 2: Convert to fraction form
    7,712.21/11,541.99 = 4,899.62/x
  3. Step 3: Cross multiply
    7,712.21x = 11,541.99 × 4,899.62
  4. Step 4: Simplify right side
    7,712.21x = 56,551,412.27
  5. Step 5: Solve for x
    x = 56,551,412.27/7,712.21
  6. Step 6: Final answer
    x = 7,332.71

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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.