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Finding the Fourth Proportional to 64,483.84, 96,726.44 and 19,505.56

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Solution

The fourth proportional to 64,483.84, 96,726.44 and 19,505.56 is: 29,258.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,483.84 : 96,726.44 = 19,505.56 : x
  2. Step 2: Convert to fraction form
    64,483.84/96,726.44 = 19,505.56/x
  3. Step 3: Cross multiply
    64,483.84x = 96,726.44 × 19,505.56
  4. Step 4: Simplify right side
    64,483.84x = 1,886,703,379.01
  5. Step 5: Solve for x
    x = 1,886,703,379.01/64,483.84
  6. Step 6: Final answer
    x = 29,258.55

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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.