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Finding the Fourth Proportional to 64,077.60, 96,125.62 and 19,708.08

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Solution

The fourth proportional to 64,077.60, 96,125.62 and 19,708.08 is: 29,564.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,077.60 : 96,125.62 = 19,708.08 : x
  2. Step 2: Convert to fraction form
    64,077.60/96,125.62 = 19,708.08/x
  3. Step 3: Cross multiply
    64,077.60x = 96,125.62 × 19,708.08
  4. Step 4: Simplify right side
    64,077.60x = 1,894,451,409.01
  5. Step 5: Solve for x
    x = 1,894,451,409.01/64,077.60
  6. Step 6: Final answer
    x = 29,564.96

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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.