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Finding the Fourth Proportional to 9,728.11, 14,579.85 and 6,216.76

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Solution

The fourth proportional to 9,728.11, 14,579.85 and 6,216.76 is: 9,317.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,728.11 : 14,579.85 = 6,216.76 : x
  2. Step 2: Convert to fraction form
    9,728.11/14,579.85 = 6,216.76/x
  3. Step 3: Cross multiply
    9,728.11x = 14,579.85 × 6,216.76
  4. Step 4: Simplify right side
    9,728.11x = 90,639,428.29
  5. Step 5: Solve for x
    x = 90,639,428.29/9,728.11
  6. Step 6: Final answer
    x = 9,317.27

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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.