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Finding the Fourth Proportional to 9,419,366.28, 12,998,364.66 and 5,344,742.28

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Solution

The fourth proportional to 9,419,366.28, 12,998,364.66 and 5,344,742.28 is: 7,375,539.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,419,366.28 : 12,998,364.66 = 5,344,742.28 : x
  2. Step 2: Convert to fraction form
    9,419,366.28/12,998,364.66 = 5,344,742.28/x
  3. Step 3: Cross multiply
    9,419,366.28x = 12,998,364.66 × 5,344,742.28
  4. Step 4: Simplify right side
    9,419,366.28x = 69,472,909,169,159.83
  5. Step 5: Solve for x
    x = 69,472,909,169,159.83/9,419,366.28
  6. Step 6: Final answer
    x = 7,375,539.62

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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.