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Finding the Fourth Proportional to 13,896,662.88, 20,845,659.54 and 6,714,237.78

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Solution

The fourth proportional to 13,896,662.88, 20,845,659.54 and 6,714,237.78 is: 10,071,678.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,896,662.88 : 20,845,659.54 = 6,714,237.78 : x
  2. Step 2: Convert to fraction form
    13,896,662.88/20,845,659.54 = 6,714,237.78/x
  3. Step 3: Cross multiply
    13,896,662.88x = 20,845,659.54 × 6,714,237.78
  4. Step 4: Simplify right side
    13,896,662.88x = 139,962,714,832,485.42
  5. Step 5: Solve for x
    x = 139,962,714,832,485.42/13,896,662.88
  6. Step 6: Final answer
    x = 10,071,678.07

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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.