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Finding the Fourth Proportional to 64,258.74, 96,392.98 and 19,889.98

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Solution

The fourth proportional to 64,258.74, 96,392.98 and 19,889.98 is: 29,836.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,258.74 : 96,392.98 = 19,889.98 : x
  2. Step 2: Convert to fraction form
    64,258.74/96,392.98 = 19,889.98/x
  3. Step 3: Cross multiply
    64,258.74x = 96,392.98 × 19,889.98
  4. Step 4: Simplify right side
    64,258.74x = 1,917,254,444.34
  5. Step 5: Solve for x
    x = 1,917,254,444.34/64,258.74
  6. Step 6: Final answer
    x = 29,836.48

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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.