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Finding the Fourth Proportional to 5,285,792.70, 7,415,039.70 and 5,285,792.70

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Solution

The fourth proportional to 5,285,792.70, 7,415,039.70 and 5,285,792.70 is: 7,415,039.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,285,792.70 : 7,415,039.70 = 5,285,792.70 : x
  2. Step 2: Convert to fraction form
    5,285,792.70/7,415,039.70 = 5,285,792.70/x
  3. Step 3: Cross multiply
    5,285,792.70x = 7,415,039.70 × 5,285,792.70
  4. Step 4: Simplify right side
    5,285,792.70x = 39,194,362,716,470.20
  5. Step 5: Solve for x
    x = 39,194,362,716,470.20/5,285,792.70
  6. Step 6: Final answer
    x = 7,415,039.70

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.