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Finding the Fourth Proportional to 64,602.90, 96,904.17 and 17,855.64

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Solution

The fourth proportional to 64,602.90, 96,904.17 and 17,855.64 is: 26,783.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,602.90 : 96,904.17 = 17,855.64 : x
  2. Step 2: Convert to fraction form
    64,602.90/96,904.17 = 17,855.64/x
  3. Step 3: Cross multiply
    64,602.90x = 96,904.17 × 17,855.64
  4. Step 4: Simplify right side
    64,602.90x = 1,730,285,974.02
  5. Step 5: Solve for x
    x = 1,730,285,974.02/64,602.90
  6. Step 6: Final answer
    x = 26,783.41

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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.