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Finding the Fourth Proportional to 9,932.96, 13,706.96 and 5,457.28

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Solution

The fourth proportional to 9,932.96, 13,706.96 and 5,457.28 is: 7,530.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,932.96 : 13,706.96 = 5,457.28 : x
  2. Step 2: Convert to fraction form
    9,932.96/13,706.96 = 5,457.28/x
  3. Step 3: Cross multiply
    9,932.96x = 13,706.96 × 5,457.28
  4. Step 4: Simplify right side
    9,932.96x = 74,802,718.67
  5. Step 5: Solve for x
    x = 74,802,718.67/9,932.96
  6. Step 6: Final answer
    x = 7,530.76

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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.