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Finding the Fourth Proportional to 64,311.88, 96,455.10 and 19,927.96

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Solution

The fourth proportional to 64,311.88, 96,455.10 and 19,927.96 is: 29,888.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,311.88 : 96,455.10 = 19,927.96 : x
  2. Step 2: Convert to fraction form
    64,311.88/96,455.10 = 19,927.96/x
  3. Step 3: Cross multiply
    64,311.88x = 96,455.10 × 19,927.96
  4. Step 4: Simplify right side
    64,311.88x = 1,922,153,374.60
  5. Step 5: Solve for x
    x = 1,922,153,374.60/64,311.88
  6. Step 6: Final answer
    x = 29,888.00

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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.