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Finding the Fourth Proportional to 64,293.84, 96,455.70 and 19,918.26

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Solution

The fourth proportional to 64,293.84, 96,455.70 and 19,918.26 is: 29,882.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,293.84 : 96,455.70 = 19,918.26 : x
  2. Step 2: Convert to fraction form
    64,293.84/96,455.70 = 19,918.26/x
  3. Step 3: Cross multiply
    64,293.84x = 96,455.70 × 19,918.26
  4. Step 4: Simplify right side
    64,293.84x = 1,921,229,711.08
  5. Step 5: Solve for x
    x = 1,921,229,711.08/64,293.84
  6. Step 6: Final answer
    x = 29,882.02

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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.