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Finding the Fourth Proportional to 8,610,356.92, 11,869,536.54 and 5,512,437.40

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Solution

The fourth proportional to 8,610,356.92, 11,869,536.54 and 5,512,437.40 is: 7,598,997.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,610,356.92 : 11,869,536.54 = 5,512,437.40 : x
  2. Step 2: Convert to fraction form
    8,610,356.92/11,869,536.54 = 5,512,437.40/x
  3. Step 3: Cross multiply
    8,610,356.92x = 11,869,536.54 × 5,512,437.40
  4. Step 4: Simplify right side
    8,610,356.92x = 65,430,077,143,762.59
  5. Step 5: Solve for x
    x = 65,430,077,143,762.59/8,610,356.92
  6. Step 6: Final answer
    x = 7,598,997.09

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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.