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Finding the Fourth Proportional to 9,216, 13,802.04 and 5,308.56

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Solution

The fourth proportional to 9,216, 13,802.04 and 5,308.56 is: 7,950.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,216 : 13,802.04 = 5,308.56 : x
  2. Step 2: Convert to fraction form
    9,216/13,802.04 = 5,308.56/x
  3. Step 3: Cross multiply
    9,216x = 13,802.04 × 5,308.56
  4. Step 4: Simplify right side
    9,216x = 73,268,957.46
  5. Step 5: Solve for x
    x = 73,268,957.46/9,216
  6. Step 6: Final answer
    x = 7,950.19

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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.