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Finding the Fourth Proportional to 64,256.74, 96,389.98 and 19,887.98

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Solution

The fourth proportional to 64,256.74, 96,389.98 and 19,887.98 is: 29,833.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,256.74 : 96,389.98 = 19,887.98 : x
  2. Step 2: Convert to fraction form
    64,256.74/96,389.98 = 19,887.98/x
  3. Step 3: Cross multiply
    64,256.74x = 96,389.98 × 19,887.98
  4. Step 4: Simplify right side
    64,256.74x = 1,917,001,994.44
  5. Step 5: Solve for x
    x = 1,917,001,994.44/64,256.74
  6. Step 6: Final answer
    x = 29,833.48

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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.