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Finding the Fourth Proportional to 5,369,276.87, 7,409,603.28 and 2,954,828.87

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Solution

The fourth proportional to 5,369,276.87, 7,409,603.28 and 2,954,828.87 is: 4,077,664.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,369,276.87 : 7,409,603.28 = 2,954,828.87 : x
  2. Step 2: Convert to fraction form
    5,369,276.87/7,409,603.28 = 2,954,828.87/x
  3. Step 3: Cross multiply
    5,369,276.87x = 7,409,603.28 × 2,954,828.87
  4. Step 4: Simplify right side
    5,369,276.87x = 21,894,109,649,942.68
  5. Step 5: Solve for x
    x = 21,894,109,649,942.68/5,369,276.87
  6. Step 6: Final answer
    x = 4,077,664.50

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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.